main/gcc: add c89/c99 wrappers

required by POSIX
fixes #6610

main/gcc/APKBUILD

@@ -6,7 +6,7 @@ pkgver=6.4.0
 [ "$CHOST" != "$CTARGET" ] && _target="-$CTARGET_ARCH" || _target=""
 
 pkgname="$pkgname$_target"
-pkgrel=5
+pkgrel=6
 pkgdesc="The GNU Compiler Collection"
 url="http://gcc.gnu.org"
 arch="all"
@@ -391,6 +391,33 @@ package() {
 				echo "GROUP ($_real)" > "$so"
 			fi
 		done
+	else
+		# add c89/c99 wrapper scripts
+		cat >"$pkgdir"/usr/bin/c89 <<EOF
+#!/bin/sh
+fl="-std=c89"
+for opt; do
+	case "$opt" in
+	-ansi|-std=c89|-std=iso9899:1990) fl="";;
+	-std=*) echo "$(basename $0) called with non ANSI/ISO C option $opt" >&2
+		exit 1;;
+	esac
+done
+exec gcc $fl ${1+"$@"}
+EOF
+		cat >"$pkgdir"/usr/bin/c99 <<-EOF
+#!/bin/sh
+fl="-std=c99"
+for opt; do
+	case "$opt" in
+	-std=c99|-std=iso9899:1999) fl="";;
+	-std=*) echo "`basename $0` called with non ISO C99 option $opt" >&2
+		exit 1;;
+	esac
+done
+exec gcc $fl ${1+"$@"}
+EOF
+		chmod 755 "$pkgdir"/usr/bin/c?9
 	fi
 }
 
@@ -641,4 +668,4 @@ f4ef08454e28c8732db69115e4998ec153399e8d229dd27f923dbdcf57b68128a65640d026cc7f45
 01c71cd5881fc07ea3b9b980697e89b3ca0fe98502958ceafc3fca18b2604c844e2f457feab711baf8e03f00a5383b0e38aac7eb954034e306f43d4a37f165ed  fix-rs6000-pie.patch
 34a818d5be67eb1f34e44a80b83c28a9b9c17d37fc9fac639f490d6bb5b53ebe3318140d09c236a17d7c98f5a7792ae3d6cefccda8067a5e942d6305b9d1f87c  fix-linux-header-use-in-libgcc.patch
 86be3338cc9c33089608bc4c5e3b7918c4e500a345c338f361b18c342119a6ed69af5495d72950de7106d760f003528b46ad14795e805f8a3331e206dcb234e3  gcc-pure64-mips.patch
-f09273975f76f98967ebbc2e9c61d7c720fdc5b220bf90a6eb31a040539422cf76069945f186e0996ba3cc2556031170a073a32fd9d78b5326ad5d250d7a26e8  ada-mips64.patch"
+508f3bca214d88531d739d761d07affc953689b1540905c73420b34c246e1e6b72588cf89f0e1462752633f8ddc88da8c0238be2a1b6e1c213829cecee7924cf  ada-mips64.patch"