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build: check for -lgsm 

If libosmo-legacy-mgcp is built with --enable-mgcp-transcoding, we need to link
-lgsm here as well. This autodetects whether -lgsm is necessary.

Todo: how about --with-g729?

Todo: osmo-msc is only using the mgcp client and should not actually need
      transcoding nor -lgsm.

Change-Id: Iab55a089ae36017b79e7cbc3cac45ef9fd85dd43
This commit is contained in:
Neels Hofmeyr 2017-08-10 14:04:37 +02:00 committed by Harald Welte
parent 4d1ee5eaf0
commit 542e65b563
1 changed files with 27 additions and 11 deletions
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38
configure.ac
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@ -64,17 +64,6 @@ AC_ARG_ENABLE([mgcp-transcoding], [AS_HELP_STRING([--enable-mgcp-transcoding], [
[osmo_ac_mgcp_transcoding="$enableval"],[osmo_ac_mgcp_transcoding="no"])
AC_ARG_WITH([g729], [AS_HELP_STRING([--with-g729], [Enable G.729 encoding/decoding.])], [osmo_ac_with_g729="$withval"],[osmo_ac_with_g729="no"])
if test "$osmo_ac_mgcp_transcoding" = "yes" ; then
AC_SEARCH_LIBS([gsm_create], [gsm], [LIBRARY_GSM="$LIBS";LIBS=""], [AC_MSG_ERROR([--enable-mgcp-transcoding: cannot find usable libgsm])])
AC_SUBST(LIBRARY_GSM)
if test "$osmo_ac_with_g729" = "yes" ; then
PKG_CHECK_MODULES(LIBBCG729, libbcg729 >= 0.1, [AC_DEFINE([HAVE_BCG729], [1], [Use bgc729 decoder/encoder])])
fi
AC_DEFINE(BUILD_MGCP_TRANSCODING, 1, [Define if we want to build the MGCP gateway with transcoding support])
fi
AM_CONDITIONAL(BUILD_MGCP_TRANSCODING, test "x$osmo_ac_mgcp_transcoding" = "xyes")
AC_SUBST(osmo_ac_mgcp_transcoding)
# Enable/disable 3G aka IuPS + IuCS support?
AC_ARG_ENABLE([iu], [AS_HELP_STRING([--enable-iu], [Build 3G support, aka IuPS and IuCS interfaces])],
[osmo_ac_iu="$enableval"],[osmo_ac_iu="no"])
@ -138,6 +127,33 @@ if test "$enable_coverage" = "yes"; then
AC_SUBST([COVERAGE_LDFLAGS])
fi
AC_DEFUN([CHECK_LIBOSMO_LEGACY_MGCP_NEEDS_LIBGSM], [
AC_CACHE_CHECK(
[whether libosmo-legacy-mgcp needs -lgsm],
libosmo_cv_legacy_mgcp_needs_libgsm, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${LIBOSMOLEGACYMGCP_LIBS} ${LIBOSMOVTY_LIBS}"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([
#include <osmocom/legacy_mgcp/mgcpgw_client.h>
], [
mgcpgw_client_init(0, 0);
])],
[libosmo_cv_legacy_mgcp_needs_libgsm=no],
[libosmo_cv_legacy_mgcp_needs_libgsm=yes])
LDFLAGS="${SAVE_LDFLAGS}"
])
])
CHECK_LIBOSMO_LEGACY_MGCP_NEEDS_LIBGSM
if test "x$libosmo_cv_legacy_mgcp_needs_libgsm" = xyes; then
AC_SEARCH_LIBS([gsm_create], [gsm], [LIBRARY_GSM="$LIBS";LIBS=""],
[AC_MSG_ERROR([libosmo-legacy-mgcp is built with transcoding and needs -lgsm but cannot find usable libgsm])])
AC_SUBST(LIBRARY_GSM)
if test "$osmo_ac_with_g729" = "yes" ; then
PKG_CHECK_MODULES(LIBBCG729, libbcg729 >= 0.1, [AC_DEFINE([HAVE_BCG729], [1], [Use bgc729 decoder/encoder])])
fi
fi
AC_DEFUN([CHECK_TM_INCLUDES_TM_GMTOFF], [
AC_CACHE_CHECK(
[whether struct tm has tm_gmtoff member],