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| author | Dan Nicolaescu <dann@ics.uci.edu> | 2009-11-20 06:05:10 +0000 |
|---|---|---|
| committer | Dan Nicolaescu <dann@ics.uci.edu> | 2009-11-20 06:05:10 +0000 |
| commit | 7a2efa6f088dee91feb2c095f81cf9c2030c2e97 (patch) | |
| tree | 1ab2d0dd5239c29fa3eea17b13187badeb850be0 /configure.in | |
| parent | 9717f1199f337920aeeb66417233c28d5f978f79 (diff) | |
| download | emacs-7a2efa6f088dee91feb2c095f81cf9c2030c2e97.tar.gz | |
Use -Wdeclaration-after-statement if available.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.in b/configure.in index d469cb13d44..a4abbe04d29 100644 --- a/configure.in +++ b/configure.in @@ -757,6 +757,19 @@ CFLAGS="$SAVE_CFLAGS" unset has_option unset SAVE_CFLAGS +### Use -Wdeclaration-after-statement if the compiler supports it +AC_MSG_CHECKING([whether gcc understands -Wdeclaration-after-statement]) +SAVE_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Wdeclaration-after-statement" +AC_TRY_COMPILE([], [], has_option=yes, has_option=no,) +if test $has_option = yes; then + C_WARNINGS_SWITCH="-Wdeclaration-after-statement $C_WARNINGS_SWITCH" +fi +AC_MSG_RESULT($has_option) +CFLAGS="$SAVE_CFLAGS" +unset has_option +unset SAVE_CFLAGS + #### Some other nice autoconf tests. dnl checks for programs |