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| author | Brian J. Tarricone <brian@tarricone.org> | 2009-09-18 17:20:18 -0700 |
|---|---|---|
| committer | Brian J. Tarricone <brian@tarricone.org> | 2009-09-18 17:20:18 -0700 |
| commit | 1e8476b13f74bc2792a4b8af09d523cb726dffa0 (patch) | |
| tree | 65f9aa0a798740bea72dd20f8b7e1fd1b9637d7b /m4macros | |
| parent | 104a024b94ae87ee87aedefd21b140505220a2c4 (diff) | |
| download | xfce4-dev-tools-1e8476b13f74bc2792a4b8af09d523cb726dffa0.tar.gz | |
add XDT_FEATURE_LINKER_OPTS
Diffstat (limited to 'm4macros')
| -rw-r--r-- | m4macros/xdt-features.m4 | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/m4macros/xdt-features.m4 b/m4macros/xdt-features.m4 index c2d2cd5..aacc54c 100644 --- a/m4macros/xdt-features.m4 +++ b/m4macros/xdt-features.m4 @@ -120,7 +120,7 @@ AC_DEFUN([XDT_FEATURE_VISIBILITY], AC_ARG_ENABLE([visibility], AC_HELP_STRING([--disable-visibility], [Don't use ELF visibility attributes]), - [], [enable_visibility=yes]) + [], [enable_visibility=yes]) have_gnuc_visibility=no if test "x$enable_visibility" != "xno"; then XDT_SUPPORTED_FLAGS([xdt_vis_test_cflags], [-Wall -Werror -Wno-unused-parameter]) @@ -160,6 +160,40 @@ AC_DEFUN([XDT_FEATURE_VISIBILITY], AM_CONDITIONAL([HAVE_GNUC_VISIBILITY], [test "x$have_gnuc_visibility" = "xyes"]) ]) +dnl XDT_FEATURE_LINKER_OPTS +dnl +dnl Checks for and enables any special linker optimizations. +dnl +AC_DEFUN([XDT_FEATURE_LINKER_OPTS], +[ + AC_ARG_ENABLE([linker-opts], + AC_HELP_STRING([--disable-linker-opts], + [Disable linker optimizations]) + [], [enable_linker_opts=yes]) + + if test "x$enable_linker_opts" != "xno"; then + AC_MSG_CHECKING([whether $LD accepts --as-needed]) + case `$LD --as-needed -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + LDFLAGS="$LDFLAGS -Wl,--as-needed" + AC_MSG_RESULT([yes]) + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac + AC_MSG_CHECKING([whether $LD accepts -O1]) + case `$LD -O1 -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + LDFLAGS="$LDFLAGS -Wl,-O1" + AC_MSG_RESULT([yes]) + ;; + *) + AC_MSG_RESULT([no]) + ;; + esac + fi +]) dnl BM_DEBUG_SUPPORT() dnl |