diff options
| author | Jean-Marc Valin <jean-marc.valin@octasic.com> | 2008-12-23 17:53:36 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jean-marc.valin@octasic.com> | 2008-12-23 17:53:36 +0300 |
| commit | 4c9a007251ca2589d34e3de607ae2835b54acf48 (patch) | |
| tree | fda51fda704d5afaaeea705516ca884233290e62 /configure.ac | |
| parent | 4d108fc37a37e9f851340ada51ff301cf2b5a315 (diff) | |
Test whether the compiler supports -fvisibility=hidden
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index bb51298..fe16c10 100644 --- a/configure.ac +++ b/configure.ac @@ -113,9 +113,18 @@ AC_ARG_ENABLE(assertions, [ --enable-assertions], AC_DEFINE([ENABLE_ASSERTIONS], , [Assertions]) fi]) +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fvisibility=hidden" +AC_MSG_CHECKING([if ${CXX} supports -fvisibility=hidden]) +AC_COMPILE_IFELSE([char foo;], + [ AC_MSG_RESULT([yes]) + SYMBOL_VISIBILITY="-fvisibility=hidden" ], + AC_MSG_RESULT([no])) +CFLAGS="$saved_CFLAGS $SYMBOL_VISIBILITY" +AC_SUBST(SYMBOL_VISIBILITY) + if test $ac_cv_c_compiler_gnu = yes ; then - CFLAGS="$CFLAGS -fvisibility=hidden -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses -Wno-unused-parameter -Wno-sign-compare" - #CFLAGS="$CFLAGS -fvisibility=hidden -W -Wstrict-prototypes -Wmissing-prototypes -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wno-parentheses" + CFLAGS="$CFLAGS -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses -Wno-unused-parameter -Wno-sign-compare" fi AC_C99_FUNC_LRINTF |