build: use LT_INIT(pic-only) instead of forcing -fPIC.

This actually allows for the user to override the decision and at the
same time supports compilers that might not be able to use -fPIC at
all.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>

configure.ac

@@ -13,7 +13,7 @@ AC_PROG_MAKE_SET
 AC_PROG_MKDIR_P
 AC_PROG_CC
 AC_PROG_INSTALL
-LT_INIT
+LT_INIT([pic-only])
 
 AC_CONFIG_MACRO_DIR([m4])
 

src/Makefile.am

@@ -3,7 +3,7 @@
 LIBVERSION=4:0:0
 
 INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)/include
-AM_CFLAGS = -fPIC -Wall
+AM_CFLAGS = -Wall
 
 lib_LTLIBRARIES = libosmocore.la
 

src/codec/Makefile.am

@@ -3,7 +3,7 @@
 LIBVERSION=0:0:0
 
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS = -fPIC -Wall
+AM_CFLAGS = -Wall
 
 lib_LTLIBRARIES = libosmocodec.la
 

src/gb/Makefile.am

@@ -3,7 +3,7 @@
 LIBVERSION=1:0:0
 
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS = -fPIC -Wall ${GCC_FVISIBILITY_HIDDEN}
+AM_CFLAGS = -Wall ${GCC_FVISIBILITY_HIDDEN}
 
 # FIXME: this should eventually go into a milenage/Makefile.am
 noinst_HEADERS = common_vty.h

src/gsm/Makefile.am

@@ -3,7 +3,7 @@
 LIBVERSION=2:0:1
 
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS = -fPIC -Wall ${GCC_FVISIBILITY_HIDDEN}
+AM_CFLAGS = -Wall ${GCC_FVISIBILITY_HIDDEN}
 
 # FIXME: this should eventually go into a milenage/Makefile.am
 noinst_HEADERS = milenage/aes.h milenage/aes_i.h milenage/aes_wrap.h \

src/vty/Makefile.am

@@ -3,7 +3,7 @@
 LIBVERSION=0:0:0
 
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS = -fPIC -Wall
+AM_CFLAGS = -Wall
 
 if ENABLE_VTY
 lib_LTLIBRARIES = libosmovty.la