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authorDmitry Golovin <dima@golovin.in>2017-06-09 17:10:47 +0300
committerRich Felker <dalias@aerifal.cx>2017-06-23 15:45:48 -0400
commit9d12a6a21fd146f543e8a6b8ec4cce7fd61be606 (patch)
tree28e101e07103ee371386958ffe7e102d16f4f184
parentce385fcfb2db74b109067083db4a26ca810eaa14 (diff)
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fix clang CFLAGS checks and silence unused argument warnings
-rwxr-xr-xconfigure8
1 files changed, 8 insertions, 0 deletions
diff --git a/configure b/configure
index c2db298c..539c9fcb 100755
--- a/configure
+++ b/configure
@@ -249,6 +249,7 @@ fi
#
tryflag CFLAGS_TRY -Werror=unknown-warning-option
tryflag CFLAGS_TRY -Werror=unused-command-line-argument
+tryflag CFLAGS_TRY -Werror=ignored-optimization-argument
tryldflag LDFLAGS_TRY -Werror=unknown-warning-option
tryldflag LDFLAGS_TRY -Werror=unused-command-line-argument
@@ -504,6 +505,13 @@ tryflag CFLAGS_AUTO -Werror=implicit-int
tryflag CFLAGS_AUTO -Werror=pointer-sign
tryflag CFLAGS_AUTO -Werror=pointer-arith
+#
+# GCC ignores unused arguements by default, but Clang needs this extra
+# parameter to stop printing warnings about LDFLAGS passed during
+# compiling stage and CFLAGS passed during linking stage.
+#
+tryflag CFLAGS_AUTO -Qunused-arguments
+
if test "x$warnings" = xyes ; then
tryflag CFLAGS_AUTO -Wall
tryflag CFLAGS_AUTO -Wno-parentheses