Teach Configure and cflags.SH about C99

Probe to see whether we need -std=gnu99 or -std=c99 to get C99 code to
compile. In cflags.SH, remove code that added gcc warning flags that were
compatible with C89 but are not compatible with C99.

1 files changed, 2 insertions, 14 deletions

diff --git a/Cross/cflags-cross-arm b/Cross/cflags-cross-arm
index 93d4f1eaee..4d7f05a4f6 100644
--- a/Cross/cflags-cross-arm
+++ b/Cross/cflags-cross-arm
@@ -1,9 +1,9 @@
 #!/bin/sh
 
 # Extra warnings, used e.g. for gcc.
-warn="-Wall -ansi   -W -Wextra -Wdeclaration-after-statement -Wendif-labels -Wc++-compat"
+warn="-Wall   -W -Wextra -Wendif-labels -Wc++-compat"
 # Extra standardness.
-stdflags=" -std=c89"
+stdflags=" -std=c99"
 # Extra extra.
 extra=""
 
@@ -113,18 +113,6 @@ for file do
 
 case "$cc" in
 *g++*)
-  # Extra paranoia in case people have bad canned ccflags:
-  # bad in the sense that the flags are accepted by g++,
-  # but then whined about.
-  for f in -Wdeclaration-after-statement -std=c89
-  do
-    ccflags=`echo $ccflags|sed 's/$f/ /'`
-  done
-  ;;
-esac
-
-case "$cc" in
-*g++*)
   # Without -Wno-unused-variable g++ 4.x compiles are rather unwatchable
   # because of all the warnings about Perl___notused, and g++ doesn't do
   # __attribute__((unused)) (and even if at some stage it may, people do