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build: enable -Wundef warnings

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Now that we've fixed all of them, enable them by default if the compiler
supports it.

Signed-off-by: Ruben Kerkhof <ruben@rubenkerkhof.com>
This commit is contained in:
Ruben Kerkhof 2020-03-11 11:05:34 +01:00
parent 0cd61f8d24
commit 5fa861b052
1 changed files with 1 additions and 0 deletions
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configure.ac
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@ -295,6 +295,7 @@ AC_C_FLAG([-Wmissing-declarations])
AC_C_FLAG([-Wpointer-arith])
AC_C_FLAG([-Wbad-function-cast])
AC_C_FLAG([-Wwrite-strings])
AC_C_FLAG([-Wundef])
if test "$enable_gcc_ultra_verbose" = "yes" ; then
AC_C_FLAG([-Wcast-qual])
AC_C_FLAG([-Wstrict-prototypes])