diff options
| author | R. Diez <rdiezmail-openocd@yahoo.de> | 2021-05-13 14:19:13 +0200 |
|---|---|---|
| committer | Antonio Borneo <borneo.antonio@gmail.com> | 2021-05-22 10:07:38 +0100 |
| commit | 229c4c6a71ce6540917cbc10629d8f51c98c7e7b (patch) | |
| tree | 60ba744c21b6dcac06cba3a3176e8f3a056f212e /configure.ac | |
| parent | 1f54a0860fb23f3a63a661ac6eeb68e3081ff1b7 (diff) | |
| download | riscv-openocd-229c4c6a71ce6540917cbc10629d8f51c98c7e7b.zip riscv-openocd-229c4c6a71ce6540917cbc10629d8f51c98c7e7b.tar.gz riscv-openocd-229c4c6a71ce6540917cbc10629d8f51c98c7e7b.tar.bz2 | |
Warn on undefined preprocessor symbols
Preprocessor directives like "#if SYMBOL" silently replace undefined or
misspelt symbols with 0, which makes configuration bugs hard to spot.
Compiler flag "-Wundef" prevents such errors.
Change-Id: I91b7ba2db02ef0c3c452d334601c53aebda4660e
Signed-off-by: R. Diez <rdiezmail-openocd@yahoo.de>
Reviewed-on: http://openocd.zylin.com/6238
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index e343875..139598e 100644 --- a/configure.ac +++ b/configure.ac @@ -637,6 +637,7 @@ m4_define([PROCESS_ADAPTERS], [ AC_MSG_ERROR([$3 is required for the ADAPTER_DESC([adapter])]) ]) ADAPTER_VAR([adapter])=no + AC_DEFINE([BUILD_]ADAPTER_SYM([adapter]), [0], [0 if you do not want the ]ADAPTER_DESC([adapter]).) ]) AM_CONDITIONAL(ADAPTER_SYM([adapter]), [test "x$ADAPTER_VAR([adapter])" != "xno"]) ]) @@ -756,6 +757,7 @@ AS_IF([test "x${gcc_wextra}" = "xyes"], [ GCC_WARNINGS="${GCC_WARNINGS} -Wcast-align" GCC_WARNINGS="${GCC_WARNINGS} -Wredundant-decls" GCC_WARNINGS="${GCC_WARNINGS} -Wpointer-arith" + GCC_WARNINGS="${GCC_WARNINGS} -Wundef" ]) AS_IF([test "x${gcc_werror}" = "xyes"], [ GCC_WARNINGS="${GCC_WARNINGS} -Werror" |