diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index a16d96f..11e5147 100644 --- a/configure.ac +++ b/configure.ac @@ -59,10 +59,28 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], [ AC_MSG_RESULT([no]) CFLAGS="$saved_CFLAGS" ]) -dnl check for -fvisibility=hidden compiler support (GCC >= 4) +dnl check for -ffunction-sections compiler support saved_CFLAGS="$CFLAGS" -CFLAGS="$CFLAGS -fvisibility=hidden" -AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden]) +CFLAGS="$CFLAGS -ffunction-sections" +AC_MSG_CHECKING([if ${CC} supports -ffunctions-sections]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" ]) + +dnl check for -fdata-sections compiler support +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fdata-sections" +AC_MSG_CHECKING([if ${CC} supports -fdata-sections]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" ]) + +dnl check for -flto compiler support +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -flto" +AC_MSG_CHECKING([if ${CC} supports -flto]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], [ AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([no]) |