cpp/openttd-patchpack/source Changeset - r17913:b411192e7742

Changeset - r17913:b411192e7742

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smatz - 13 years ago 2011-08-07 11:18:33
smatz@openttd.org

(svn r22728) -Codechange: add -Wno-narrowing to cxxflags in order to prevent many useless warnings with GCC 4.7

1 file changed with 7 insertions and 0 deletions:

config.lib

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config.lib

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@@ @@ -1290,24 +1290,31 @@ make_compiler_cflags() { @@
 			flags="$flags -fno-strict-overflow"
 			# GCC 4.2 no longer includes -Wnon-virtual-dtor in -Wall.
 			# Enable it in order to be consistent with older GCC versions.
 			flags="$flags -Wnon-virtual-dtor"
 		fi
 		if [ $cc_version -ge 43 ]; then
 			# Use gnu++0x mode so static_assert() is available.
 			# Don't use c++0x, it breaks mingw (with gcc 4.4.0).
 			cxxflags="$cxxflags -std=gnu++0x"
 		fi
 		if [ $cc_version -ge 47 ]; then
 			# Disable -Wnarrowing which gives many warnings, such as:
 			# warning: narrowing conversion of '...' from 'unsigned int' to 'int' inside { } [-Wnarrowing]
 			# They are valid according to the C++ standard, but useless.
 			cxxflags="$cxxflags -Wno-narrowing"
 		fi
 		if [ "$enable_lto" != "0" ]; then
 			# GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
 			has_lto=`$1 -dumpspecs | grep '\%{flto'`
 			if [ -n "$has_lto" ]; then
 				# Use LTO only if we see LTO exists and is requested
 				if [ $cc_version -lt 46 ]; then
 					flags="$flags -flto"
 				else
 					flags="$flags -flto=jobserver"
 				fi
 				ldflags="$ldflags -fwhole-program"
 				features="$features lto"

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