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build: do not enable c++ warnings on 0 when nullptr is not supported.

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* configure.ac (WARN_CXXFLAGS): Enable -Wzero-as-null-pointer-constant
only when nullptr is supported..
This commit is contained in:
Akim Demaille
2012-05-09 11:20:18 +02:00
parent b2c4c25d4a
commit 7e3510e6dd
1 changed files with 3 additions and 1 deletions
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4
configure.ac
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@@ -70,7 +70,7 @@ if test "$enable_gcc_warnings" = yes; then
-Wcast-qual -Wformat -Wpointer-arith -Wwrite-strings' -Wcast-qual -Wformat -Wpointer-arith -Wwrite-strings'
warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes
-Wshadow -Wstrict-prototypes' -Wshadow -Wstrict-prototypes'
warn_cxx='-Wnoexcept -Wzero-as-null-pointer-constant' warn_cxx='-Wnoexcept'
AC_LANG_PUSH([C]) AC_LANG_PUSH([C])
for i in $warn_common $warn_c; for i in $warn_common $warn_c;
do do
@@ -87,6 +87,8 @@ if test "$enable_gcc_warnings" = yes; then
do do
gl_WARN_ADD([$i], [WARN_CXXFLAGS]) gl_WARN_ADD([$i], [WARN_CXXFLAGS])
done done
gl_WARN_ADD([ -Wzero-as-null-pointer-constant], [WARN_CXXFLAGS],
[AC_LANG_PROGRAM([], [nullptr])])
gl_WARN_ADD([-Werror], [WERROR_CXXFLAGS]) gl_WARN_ADD([-Werror], [WERROR_CXXFLAGS])
# Warnings for the test suite only. # Warnings for the test suite only.
gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST]) gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST])