670 lines
23 KiB
Plaintext
670 lines
23 KiB
Plaintext
dnl ---------------------------------------------------------------------------
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dnl Message output
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dnl ---------------------------------------------------------------------------
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AC_DEFUN([LOC_MSG],[echo "$1"])
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/vl_prog_cc_warnings.html
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dnl ---------------------------------------------------------------------------
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dnl @synopsis VL_PROG_CC_WARNINGS([ANSI])
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dnl
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dnl Enables a reasonable set of warnings for the C compiler.
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dnl Optionally, if the first argument is nonempty, turns on flags which
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dnl enforce and/or enable proper ANSI C if such are known with the
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dnl compiler used.
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dnl
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dnl Currently this macro knows about GCC, Solaris C compiler, Digital
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dnl Unix C compiler, C for AIX Compiler, HP-UX C compiler, IRIX C
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dnl compiler, NEC SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos
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dnl 10.0.0.8) C compiler.
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dnl
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dnl @category C
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dnl @author Ville Laurikari <vl@iki.fi>
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dnl @version 2002-04-04
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dnl @license AllPermissive
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AC_DEFUN([VL_PROG_CC_WARNINGS], [
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ansi=$1
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if test -z "$ansi"; then
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msg="for C compiler warning flags"
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else
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msg="for C compiler warning and ANSI conformance flags"
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fi
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AC_CACHE_CHECK($msg, vl_cv_prog_cc_warnings, [
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if test -n "$CC"; then
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cat > conftest.c <<EOF
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int main(int argc, char **argv) { return 0; }
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EOF
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dnl GCC. -W option has been renamed in -wextra in latest gcc versions.
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if test "$GCC" = "yes"; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-Wall -W"
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else
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vl_cv_prog_cc_warnings="-Wall -W -ansi -pedantic"
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fi
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dnl Most compilers print some kind of a version string with some command
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dnl line options (often "-V"). The version string should be checked
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dnl before doing a test compilation run with compiler-specific flags.
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dnl This is because some compilers (like the Cray compiler) only
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dnl produce a warning message for unknown flags instead of returning
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dnl an error, resulting in a false positive. Also, compilers may do
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dnl erratic things when invoked with flags meant for a different
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dnl compiler.
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dnl Solaris C compiler
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elif $CC -V 2>&1 | grep -i "WorkShop" > /dev/null 2>&1 &&
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$CC -c -v -Xc conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-v"
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else
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vl_cv_prog_cc_warnings="-v -Xc"
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fi
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dnl Digital Unix C compiler
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elif $CC -V 2>&1 | grep -i "Digital UNIX Compiler" > /dev/null 2>&1 &&
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$CC -c -verbose -w0 -warnprotos -std1 conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos"
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else
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vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos -std1"
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fi
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dnl C for AIX Compiler
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elif $CC 2>&1 | grep -i "C for AIX Compiler" > /dev/null 2>&1 &&
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$CC -c -qlanglvl=ansi -qinfo=all conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd"
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else
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vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd -qlanglvl=ansi"
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fi
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dnl IRIX C compiler
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elif $CC -version 2>&1 | grep -i "MIPSpro Compilers" > /dev/null 2>&1 &&
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$CC -c -fullwarn -ansi -ansiE conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-fullwarn"
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else
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vl_cv_prog_cc_warnings="-fullwarn -ansi -ansiE"
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fi
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dnl HP-UX C compiler
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elif what $CC 2>&1 | grep -i "HP C Compiler" > /dev/null 2>&1 &&
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$CC -c -Aa +w1 conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="+w1"
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else
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vl_cv_prog_cc_warnings="+w1 -Aa"
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fi
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dnl The NEC SX-5 (Super-UX 10) C compiler
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elif $CC -V 2>&1 | grep "/SX" > /dev/null 2>&1 &&
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$CC -c -pvctl[,]fullmsg -Xc conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-pvctl[,]fullmsg"
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else
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vl_cv_prog_cc_warnings="-pvctl[,]fullmsg -Xc"
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fi
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dnl The Cray C compiler (Unicos)
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elif $CC -V 2>&1 | grep -i "Cray" > /dev/null 2>&1 &&
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$CC -c -h msglevel 2 conftest.c > /dev/null 2>&1 &&
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test -f conftest.o; then
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if test -z "$ansi"; then
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vl_cv_prog_cc_warnings="-h msglevel 2"
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else
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vl_cv_prog_cc_warnings="-h msglevel 2 -h conform"
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fi
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fi
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rm -f conftest.*
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fi
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if test -n "$vl_cv_prog_cc_warnings"; then
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CFLAGS="$CFLAGS $vl_cv_prog_cc_warnings"
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else
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vl_cv_prog_cc_warnings="unknown"
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fi
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])
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://autoconf-archive.cryp.to/ax_lang_compiler_ms.html
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dnl ---------------------------------------------------------------------------
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dnl @synopsis AX_LANG_COMPILER_MS
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dnl
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dnl Check whether the compiler for the current language is Microsoft.
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dnl
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dnl This macro is modeled after _AC_LANG_COMPILER_GNU in the GNU
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dnl Autoconf implementation.
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dnl
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dnl @category InstalledPackages
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dnl @author Braden McDaniel <braden@endoframe.com>
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dnl @version 2004-11-15
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dnl @license AllPermissive
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AC_DEFUN([AX_LANG_COMPILER_MS],
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[AC_CACHE_CHECK([whether we are using the Microsoft _AC_LANG compiler],
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[ax_cv_[]_AC_LANG_ABBREV[]_compiler_ms],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[#ifndef _MSC_VER
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choke me
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#endif
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]])],
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[ax_compiler_ms=yes],
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[ax_compiler_ms=no])
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ax_cv_[]_AC_LANG_ABBREV[]_compiler_ms=$ax_compiler_ms
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])])
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/ax_check_gl.html
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dnl ---------------------------------------------------------------------------
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dnl @synopsis AX_CHECK_GL
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dnl
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dnl Check for an OpenGL implementation. If GL is found, the required
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dnl compiler and linker flags are included in the output variables
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dnl "GL_CFLAGS" and "GL_LIBS", respectively. This macro adds the
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dnl configure option "--with-apple-opengl-framework", which users can
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dnl use to indicate that Apple's OpenGL framework should be used on Mac
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dnl OS X. If Apple's OpenGL framework is used, the symbol
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dnl "HAVE_APPLE_OPENGL_FRAMEWORK" is defined. If no GL implementation
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dnl is found, "no_gl" is set to "yes".
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dnl
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dnl @category InstalledPackages
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dnl @author Braden McDaniel <braden@endoframe.com>
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dnl @version 2004-11-15
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dnl @license AllPermissive
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AC_DEFUN([AX_CHECK_GL],
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[AC_REQUIRE([AC_PATH_X])dnl
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AC_REQUIRE([ACX_PTHREAD])dnl
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#
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# There isn't a reliable way to know we should use the Apple OpenGL framework
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# without a configure option. A Mac OS X user may have installed an
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# alternative GL implementation (e.g., Mesa), which may or may not depend on X.
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#
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AC_ARG_WITH([apple-opengl-framework],
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[AC_HELP_STRING([--with-apple-opengl-framework],
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[use Apple OpenGL framework (Mac OS X only)])])
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if test "X$with_apple_opengl_framework" = "Xyes"; then
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AC_DEFINE([HAVE_APPLE_OPENGL_FRAMEWORK], [1],
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[Use the Apple OpenGL framework.])
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GL_LIBS="-framework OpenGL"
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else
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AC_LANG_PUSH(C)
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AX_LANG_COMPILER_MS
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if test X$ax_compiler_ms = Xno; then
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GL_CFLAGS="${PTHREAD_CFLAGS}"
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GL_LIBS="${PTHREAD_LIBS} -lm"
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fi
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#
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# Use x_includes and x_libraries if they have been set (presumably by
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# AC_PATH_X).
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#
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if test "X$no_x" != "Xyes"; then
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if test -n "$x_includes"; then
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GL_CFLAGS="-I${x_includes} ${GL_CFLAGS}"
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fi
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if test -n "$x_libraries"; then
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GL_LIBS="-L${x_libraries} -lX11 ${GL_LIBS}"
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fi
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fi
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AC_CHECK_HEADERS([windows.h])
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AC_CACHE_CHECK([for OpenGL library], [ax_cv_check_gl_libgl],
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[ax_cv_check_gl_libgl="no"
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ax_save_CPPFLAGS="${CPPFLAGS}"
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CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
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ax_save_LIBS="${LIBS}"
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LIBS=""
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ax_check_libs="-lopengl32 -lGL"
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for ax_lib in ${ax_check_libs}; do
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if test X$ax_compiler_ms = Xyes; then
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ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
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else
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ax_try_lib="${ax_lib}"
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fi
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LIBS="${ax_try_lib} ${GL_LIBS} ${ax_save_LIBS}"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[
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# if HAVE_WINDOWS_H && defined(_WIN32)
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# include <windows.h>
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# endif
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# include <GL/gl.h>]],
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[[glBegin(0)]])],
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[ax_cv_check_gl_libgl="${ax_try_lib}"; break])
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done
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LIBS=${ax_save_LIBS}
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CPPFLAGS=${ax_save_CPPFLAGS}])
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if test "X${ax_cv_check_gl_libgl}" = "Xno"; then
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no_gl="yes"
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GL_CFLAGS=""
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GL_LIBS=""
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else
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GL_LIBS="${ax_cv_check_gl_libgl} ${GL_LIBS}"
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fi
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AC_LANG_POP(C)
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fi
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AC_SUBST([GL_CFLAGS])
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AC_SUBST([GL_LIBS])
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/ax_check_glu.html
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dnl ---------------------------------------------------------------------------
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dnl @synopsis AX_CHECK_GLU
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dnl
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dnl Check for GLU. If GLU is found, the required preprocessor and
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dnl linker flags are included in the output variables "GLU_CFLAGS" and
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dnl "GLU_LIBS", respectively. This macro adds the configure option
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dnl "--with-apple-opengl-framework", which users can use to indicate
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dnl that Apple's OpenGL framework should be used on Mac OS X. If
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dnl Apple's OpenGL framework is used, the symbol
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dnl "HAVE_APPLE_OPENGL_FRAMEWORK" is defined. If no GLU implementation
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dnl is found, "no_glu" is set to "yes".
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dnl
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dnl @category InstalledPackages
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dnl @author Braden McDaniel <braden@endoframe.com>
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dnl @version 2004-11-15
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dnl @license AllPermissive
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AC_DEFUN([AX_CHECK_GLU],
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[AC_REQUIRE([AX_CHECK_GL])dnl
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AC_REQUIRE([AC_PROG_CXX])dnl
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GLU_CFLAGS="${GL_CFLAGS}"
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if test "X${with_apple_opengl_framework}" != "Xyes"; then
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AC_CACHE_CHECK([for OpenGL Utility library], [ax_cv_check_glu_libglu],
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[ax_cv_check_glu_libglu="no"
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ax_save_CPPFLAGS="${CPPFLAGS}"
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CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
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ax_save_LIBS="${LIBS}"
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LIBS=""
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ax_check_libs="-lglu32 -lGLU"
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for ax_lib in ${ax_check_libs}; do
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if test X$ax_compiler_ms = Xyes; then
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ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
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else
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ax_try_lib="${ax_lib}"
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fi
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LIBS="${ax_try_lib} ${GL_LIBS} ${ax_save_LIBS}"
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#
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# libGLU typically links with libstdc++ on POSIX platforms. However,
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# setting the language to C++ means that test program source is named
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# "conftest.cc"; and Microsoft cl doesn't know what to do with such a
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# file.
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#
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AC_LANG_PUSH([C++])
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if test X$ax_compiler_ms = Xyes; then
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AC_LANG_PUSH([C])
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fi
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[
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# if HAVE_WINDOWS_H && defined(_WIN32)
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# include <windows.h>
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# endif
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# include <GL/glu.h>]],
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[[gluBeginCurve(0)]])],
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[ax_cv_check_glu_libglu="${ax_try_lib}"; break])
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if test X$ax_compiler_ms = Xyes; then
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AC_LANG_POP([C])
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fi
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AC_LANG_POP([C++])
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done
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LIBS=${ax_save_LIBS}
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CPPFLAGS=${ax_save_CPPFLAGS}])
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if test "X${ax_cv_check_glu_libglu}" = "Xno"; then
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no_glu="yes"
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GLU_CFLAGS=""
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GLU_LIBS=""
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else
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GLU_LIBS="${ax_cv_check_glu_libglu} ${GL_LIBS}"
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fi
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fi
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AC_SUBST([GLU_CFLAGS])
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AC_SUBST([GLU_LIBS])
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])
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dnl ---------------------------------------------------------------------------
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/ax_check_glut.html
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dnl ---------------------------------------------------------------------------
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dnl @synopsis AX_CHECK_GLUT
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dnl
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dnl Check for GLUT. If GLUT is found, the required compiler and linker
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dnl flags are included in the output variables "GLUT_CFLAGS" and
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dnl "GLUT_LIBS", respectively. This macro adds the configure option
|
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dnl "--with-apple-opengl-framework", which users can use to indicate
|
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dnl that Apple's OpenGL framework should be used on Mac OS X. If
|
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dnl Apple's OpenGL framework is used, the symbol
|
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dnl "HAVE_APPLE_OPENGL_FRAMEWORK" is defined. If GLUT is not found,
|
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dnl "no_glut" is set to "yes".
|
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dnl
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dnl @category InstalledPackages
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dnl @author Braden McDaniel <braden@endoframe.com>
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dnl @version 2004-11-15
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dnl @license AllPermissive
|
|
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AC_DEFUN([AX_CHECK_GLUT],
|
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[AC_REQUIRE([AX_CHECK_GLU])dnl
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AC_REQUIRE([AC_PATH_XTRA])dnl
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|
if test "X$with_apple_opengl_framework" = "Xyes"; then
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GLUT_CFLAGS="${GLU_CFLAGS}"
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GLUT_LIBS="-framework GLUT -lobjc ${GL_LIBS}"
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else
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GLUT_CFLAGS=${GLU_CFLAGS}
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GLUT_LIBS=${GLU_LIBS}
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#
|
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# If X is present, assume GLUT depends on it.
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#
|
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if test "X${no_x}" != "Xyes"; then
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GLUT_LIBS="${X_PRE_LIBS} -lXmu -lXi ${X_EXTRA_LIBS} ${GLUT_LIBS}"
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fi
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AC_LANG_PUSH(C)
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ax_save_CPPFLAGS="${CPPFLAGS}"
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CPPFLAGS="${GLUT_CFLAGS} ${CPPFLAGS}"
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AC_CACHE_CHECK([for GLUT library], [ax_cv_check_glut_libglut],
|
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[ax_cv_check_glut_libglut="no"
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ax_save_LIBS="${LIBS}"
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LIBS=""
|
|
ax_check_libs="-lglut32 -lglut"
|
|
for ax_lib in ${ax_check_libs}; do
|
|
if test X$ax_compiler_ms = Xyes; then
|
|
ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
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else
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|
ax_try_lib="${ax_lib}"
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fi
|
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LIBS="${ax_try_lib} ${GLUT_LIBS} ${ax_save_LIBS}"
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AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM([[
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|
# if HAVE_WINDOWS_H && defined(_WIN32)
|
|
# include <windows.h>
|
|
# endif
|
|
# include <GL/glut.h>]],
|
|
[[glutMainLoop()]])],
|
|
[ax_cv_check_glut_libglut="${ax_try_lib}"; break])
|
|
|
|
done
|
|
LIBS=${ax_save_LIBS}
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|
])
|
|
CPPFLAGS="${ax_save_CPPFLAGS}"
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|
AC_LANG_POP(C)
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|
|
|
if test "X${ax_cv_check_glut_libglut}" = "Xno"; then
|
|
no_glut="yes"
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GLUT_CFLAGS=""
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|
GLUT_LIBS=""
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else
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|
GLUT_LIBS="${ax_cv_check_glut_libglut} ${GLUT_LIBS}"
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fi
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fi
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AC_SUBST([GLUT_CFLAGS])
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AC_SUBST([GLUT_LIBS])
|
|
])dnl
|
|
|
|
dnl ---------------------------------------------------------------------------
|
|
dnl Available from the GNU Autoconf Macro Archive at:
|
|
dnl http://www.gnu.org/software/ac-archive/acx_pthread.html
|
|
dnl ---------------------------------------------------------------------------
|
|
|
|
dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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dnl
|
|
dnl This macro figures out how to build C programs using POSIX threads.
|
|
dnl It sets the PTHREAD_LIBS output variable to the threads library and
|
|
dnl linker flags, and the PTHREAD_CFLAGS output variable to any special
|
|
dnl C compiler flags that are needed. (The user can also force certain
|
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dnl compiler flags/libs to be tested by setting these environment
|
|
dnl variables.)
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|
dnl
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dnl Also sets PTHREAD_CC to any special C compiler that is needed for
|
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dnl multi-threaded programs (defaults to the value of CC otherwise).
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|
dnl (This is necessary on AIX to use the special cc_r compiler alias.)
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dnl
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dnl NOTE: You are assumed to not only compile your program with these
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dnl flags, but also link it with them as well. e.g. you should link
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|
dnl with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
|
|
dnl $LIBS
|
|
dnl
|
|
dnl If you are only building threads programs, you may wish to use
|
|
dnl these variables in your default LIBS, CFLAGS, and CC:
|
|
dnl
|
|
dnl LIBS="$PTHREAD_LIBS $LIBS"
|
|
dnl CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
dnl CC="$PTHREAD_CC"
|
|
dnl
|
|
dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
|
|
dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
|
|
dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
|
|
dnl
|
|
dnl ACTION-IF-FOUND is a list of shell commands to run if a threads
|
|
dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to
|
|
dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the
|
|
dnl default action will define HAVE_PTHREAD.
|
|
dnl
|
|
dnl Please let the authors know if this macro fails on any platform, or
|
|
dnl if you have any other suggestions or comments. This macro was based
|
|
dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with
|
|
dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros
|
|
dnl posted by Alejandro Forero Cuervo to the autoconf macro repository.
|
|
dnl We are also grateful for the helpful feedback of numerous users.
|
|
dnl
|
|
dnl @category InstalledPackages
|
|
dnl @author Steven G. Johnson <stevenj@alum.mit.edu>
|
|
dnl @version 2005-01-14
|
|
dnl @license GPLWithACException
|
|
|
|
AC_DEFUN([ACX_PTHREAD], [
|
|
AC_REQUIRE([AC_CANONICAL_HOST])
|
|
AC_LANG_SAVE
|
|
AC_LANG_C
|
|
acx_pthread_ok=no
|
|
|
|
# We used to check for pthread.h first, but this fails if pthread.h
|
|
# requires special compiler flags (e.g. on True64 or Sequent).
|
|
# It gets checked for in the link test anyway.
|
|
|
|
# First of all, check if the user has set any of the PTHREAD_LIBS,
|
|
# etcetera environment variables, and if threads linking works using
|
|
# them:
|
|
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
|
|
save_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
save_LIBS="$LIBS"
|
|
LIBS="$PTHREAD_LIBS $LIBS"
|
|
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
|
|
AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
|
|
AC_MSG_RESULT($acx_pthread_ok)
|
|
if test x"$acx_pthread_ok" = xno; then
|
|
PTHREAD_LIBS=""
|
|
PTHREAD_CFLAGS=""
|
|
fi
|
|
LIBS="$save_LIBS"
|
|
CFLAGS="$save_CFLAGS"
|
|
fi
|
|
|
|
# We must check for the threads library under a number of different
|
|
# names; the ordering is very important because some systems
|
|
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
|
|
# libraries is broken (non-POSIX).
|
|
|
|
# Create a list of thread flags to try. Items starting with a "-" are
|
|
# C compiler flags, and other items are library names, except for "none"
|
|
# which indicates that we try without any flags at all, and "pthread-config"
|
|
# which is a program returning the flags for the Pth emulation library.
|
|
|
|
acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
|
|
|
|
# The ordering *is* (sometimes) important. Some notes on the
|
|
# individual items follow:
|
|
|
|
# pthreads: AIX (must check this before -lpthread)
|
|
# none: in case threads are in libc; should be tried before -Kthread and
|
|
# other compiler flags to prevent continual compiler warnings
|
|
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
|
|
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
|
|
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
|
|
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
|
|
# -pthreads: Solaris/gcc
|
|
# -mthreads: Mingw32/gcc, Lynx/gcc
|
|
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
|
|
# doesn't hurt to check since this sometimes defines pthreads too;
|
|
# also defines -D_REENTRANT)
|
|
# pthread: Linux, etcetera
|
|
# --thread-safe: KAI C++
|
|
# pthread-config: use pthread-config program (for GNU Pth library)
|
|
|
|
case "${host_cpu}-${host_os}" in
|
|
*solaris*)
|
|
|
|
# On Solaris (at least, for some versions), libc contains stubbed
|
|
# (non-functional) versions of the pthreads routines, so link-based
|
|
# tests will erroneously succeed. (We need to link with -pthread or
|
|
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
|
|
# a function called by this macro, so we could check for that, but
|
|
# who knows whether they'll stub that too in a future libc.) So,
|
|
# we'll just look for -pthreads and -lpthread first:
|
|
|
|
acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags"
|
|
;;
|
|
esac
|
|
|
|
if test x"$acx_pthread_ok" = xno; then
|
|
for flag in $acx_pthread_flags; do
|
|
|
|
case $flag in
|
|
none)
|
|
AC_MSG_CHECKING([whether pthreads work without any flags])
|
|
;;
|
|
|
|
-*)
|
|
AC_MSG_CHECKING([whether pthreads work with $flag])
|
|
PTHREAD_CFLAGS="$flag"
|
|
;;
|
|
|
|
pthread-config)
|
|
AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
|
|
if test x"$acx_pthread_config" = xno; then continue; fi
|
|
PTHREAD_CFLAGS="`pthread-config --cflags`"
|
|
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
|
|
;;
|
|
|
|
*)
|
|
AC_MSG_CHECKING([for the pthreads library -l$flag])
|
|
PTHREAD_LIBS="-l$flag"
|
|
;;
|
|
esac
|
|
|
|
save_LIBS="$LIBS"
|
|
save_CFLAGS="$CFLAGS"
|
|
LIBS="$PTHREAD_LIBS $LIBS"
|
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
|
|
# Check for various functions. We must include pthread.h,
|
|
# since some functions may be macros. (On the Sequent, we
|
|
# need a special flag -Kthread to make this header compile.)
|
|
# We check for pthread_join because it is in -lpthread on IRIX
|
|
# while pthread_create is in libc. We check for pthread_attr_init
|
|
# due to DEC craziness with -lpthreads. We check for
|
|
# pthread_cleanup_push because it is one of the few pthread
|
|
# functions on Solaris that doesn't have a non-functional libc stub.
|
|
# We try pthread_create on general principles.
|
|
AC_TRY_LINK([#include <pthread.h>],
|
|
[pthread_t th; pthread_join(th, 0);
|
|
pthread_attr_init(0); pthread_cleanup_push(0, 0);
|
|
pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
|
|
[acx_pthread_ok=yes])
|
|
|
|
LIBS="$save_LIBS"
|
|
CFLAGS="$save_CFLAGS"
|
|
|
|
AC_MSG_RESULT($acx_pthread_ok)
|
|
if test "x$acx_pthread_ok" = xyes; then
|
|
break;
|
|
fi
|
|
|
|
PTHREAD_LIBS=""
|
|
PTHREAD_CFLAGS=""
|
|
done
|
|
fi
|
|
|
|
# Various other checks:
|
|
if test "x$acx_pthread_ok" = xyes; then
|
|
save_LIBS="$LIBS"
|
|
LIBS="$PTHREAD_LIBS $LIBS"
|
|
save_CFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
|
|
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
|
|
AC_MSG_CHECKING([for joinable pthread attribute])
|
|
attr_name=unknown
|
|
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
|
|
AC_TRY_LINK([#include <pthread.h>], [int attr=$attr;],
|
|
[attr_name=$attr; break])
|
|
done
|
|
AC_MSG_RESULT($attr_name)
|
|
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
|
|
AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
|
|
[Define to necessary symbol if this constant
|
|
uses a non-standard name on your system.])
|
|
fi
|
|
|
|
AC_MSG_CHECKING([if more special flags are required for pthreads])
|
|
flag=no
|
|
case "${host_cpu}-${host_os}" in
|
|
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
|
|
*solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
|
|
esac
|
|
AC_MSG_RESULT(${flag})
|
|
if test "x$flag" != xno; then
|
|
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
|
|
fi
|
|
|
|
LIBS="$save_LIBS"
|
|
CFLAGS="$save_CFLAGS"
|
|
|
|
# More AIX lossage: must compile with cc_r
|
|
AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC})
|
|
else
|
|
PTHREAD_CC="$CC"
|
|
fi
|
|
|
|
AC_SUBST(PTHREAD_LIBS)
|
|
AC_SUBST(PTHREAD_CFLAGS)
|
|
AC_SUBST(PTHREAD_CC)
|
|
|
|
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
|
|
if test x"$acx_pthread_ok" = xyes; then
|
|
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
|
|
:
|
|
else
|
|
acx_pthread_ok=no
|
|
$2
|
|
fi
|
|
AC_LANG_RESTORE
|
|
])dnl ACX_PTHREAD
|