diff options
Diffstat (limited to 'configure.ac')
| -rwxr-xr-x | configure.ac | 65 |
1 files changed, 32 insertions, 33 deletions
diff --git a/configure.ac b/configure.ac index c643c5c..fcd2831 100755 --- a/configure.ac +++ b/configure.ac @@ -245,6 +245,7 @@ AC_CHECK_FUNCS([getuid geteuid iconv mtrace __secure_getenv setregid stpcpy stre # drop AC_FUNC_MALLOC, REALLOC and STRTOD AC_CHECK_FUNCS([malloc realloc strtod memset nl_langinfo stpcpy strchr strerror strrchr]) +dnl check for version script support in the linker (GNU ld, or Solaris ld style) AC_ARG_ENABLE([ld-version-script], AS_HELP_STRING([--enable-ld-version-script],[enable/disable use of linker version script. (default is system dependent)]), @@ -253,53 +254,51 @@ AC_ARG_ENABLE([ld-version-script], AS_IF([test "x$have_ld_version_script" = xyes], [ - dnl check for version script support in the linker (GNU ld, or Solaris ld style) - AC_CACHE_CHECK([for ld --version-script], [popt_cv_ld_version_script], [dnl - cat > conftest.c <<EOF -void cl_symbol1(void) {} -void cli_symbol2(void) {} -EOF - cat > conftest.map <<EOF + AC_MSG_CHECKING([if ld version-script works - GNU ld, Solaris ld]) + cat > conftest.map <<EOF RELEASE { global: - cl_*; + popt_*; local: *; }; PRIVATE { global: - cli_*; + popti_*; local: *; }; EOF - dnl check for GNU ld style linker version script - if AC_TRY_COMMAND([${CC-cc} $CFLAGS $pic_flag $LDFLAGS -shared - -o conftest.so conftest.c - -Wl,--version-script,conftest.map - 1>&AS_MESSAGE_LOG_FD]); - then - LD_VERSION_SCRIPT_FLAG=--version-script - popt_cv_ld_version_script=yes - else - dnl check for Solaris ld style linker version script - if AC_TRY_COMMAND([${CC-cc} $CFLAGS $pic_flag $LDFLAGS -shared - -o conftest.so conftest.c - -Wl,-M,conftest.map - 1>&AS_MESSAGE_LOG_FD]); - then + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + void popt_symbol1(void) {} + void popti_symbol2(void) {} + ]], [])], + [have_ld_version_script=yes], [have_ld_version_script=no]) + LDFLAGS="$save_LDFLAGS" + if test x$have_ld_version_script != xyes + then + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,-M,conftest.map" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + void popt_symbol1(void) {} + void popti_symbol2(void) {} + ]], [])], + [have_ld_version_script=yes], [have_ld_version_script=no]) + LDFLAGS="$save_LDFLAGS" + if test x$have_ld_version_script = xyes + then LD_VERSION_SCRIPT_FLAG=-M - popt_cv_ld_version_script=yes; - else - popt_cv_ld_version_script=no - fi - fi - have_ld_version_script=$popt_cv_ld_version_script - rm -f conftest*]) - ]) - + fi + else + LD_VERSION_SCRIPT_FLAG=--version-script + fi + AC_MSG_RESULT($have_ld_version_script) + rm -f conftest.map conftest.c +]) AC_SUBST([LD_VERSION_SCRIPT_FLAG]) AM_CONDITIONAL([HAVE_LD_VERSION_SCRIPT],[test "$have_ld_version_script" = "yes"]) |