32 lines
1.0 KiB
Plaintext
32 lines
1.0 KiB
Plaintext
|
dnl Copyright (C) 2008 Kim Woelders
|
||
|
|
dnl This code is public domain and can be freely used or copied.
|
||
|
|
|
||
|
|
dnl Macro to set compiler warning flags in CFLAGS_WARNINGS
|
||
|
|
|
||
|
|
dnl Provides configure argument --enable-werror to stop compilation on warnings
|
||
|
|
|
||
|
|
dnl Usage: EC_C_WARNINGS([LANG])
|
||
|
|
dnl Set LANG to 'cpp' when compiling for C++
|
||
|
|
|
||
|
|
AC_DEFUN([EC_C_WARNINGS], [
|
||
|
|
define(ec_c_compile_cpp, ifelse([$1], [cpp], [yes], [no]))
|
||
|
|
|
||
|
|
AC_ARG_ENABLE(werror,
|
||
|
|
[ --enable-werror treat compiler warnings as errors @<:@default=no@:>@],,
|
||
|
|
enable_werror=no)
|
||
|
|
|
||
|
|
if test "x$GCC" = "xyes"; then
|
||
|
|
CFLAGS_WARNINGS="-W -Wall -Wcast-align -Wpointer-arith -Wshadow -Wwrite-strings"
|
||
|
|
dnl # ignore some warnings for now...
|
||
|
|
CFLAGS_WARNINGS="$CFLAGS_WARNINGS -Wno-unused-parameter"
|
||
|
|
ifelse(ec_c_compile_cpp, no, [
|
||
|
|
CFLAGS_WARNINGS="$CFLAGS_WARNINGS -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes"
|
||
|
|
],)
|
||
|
|
|
||
|
|
if test "x$enable_werror" = "xyes"; then
|
||
|
|
CFLAGS_WARNINGS="$CFLAGS_WARNINGS -Werror"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
AC_SUBST(CFLAGS_WARNINGS)
|
||
|
|
])
|