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Add compiler warnings for some common incorrect usage of functions, such as forgetting to cast null pointers to variadic functions

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darcs-hash:20061019151947-ac50b-4043638a7a830fa80fd918f92365f5afe3ff208a.gz
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axel
2006-10-20 01:19:47 +10:00
parent ea998b03f2
commit 2d05b1c1b4
6 changed files with 18 additions and 8 deletions
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9
configure.ac
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@@ -92,6 +92,15 @@ AC_SUBST( optbindirs, $optbindirs )
# Tell autoconf to create config.h header
AC_CONFIG_HEADERS(config.h)
AH_BOTTOM([#if __GNUC__ >= 3
#define __warn_unused __attribute__ ((warn_unused_result))
#define __sentinel __attribute__ ((sentinel))
#else
#define __warn_unused
#define __sentinel
#endif])
# Set up various programs needed for install
AC_PROG_CC
AC_PROG_CPP