Use name in GCC_CLASSIC as C compiler for coverage testing, if set.

Apple removed support for gcov in the default gcc compiler chain,
when they moved to llvm.  This can be circumvented in XCode 4.2 by
using the gcc chain with gcc-4.2.  This patch allows setting
GCC_CLASSIC to the name of a real gcc executable (e.g. "gcc-4.2")
to allow coverage testing.

diff --git a/configure b/configure
index 780317ce400a898b47916e679112688501258ac6..060acb72404a7b07b80f1c4c587087c545ee2246 100755 (executable)
--- a/configure
+++ b/configure
@@ -416,6 +416,9 @@ fi
 
 if test $cover -eq 1; then
   CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
+  if test -n "$GCC_CLASSIC"; then
+    CC=$GCC_CLASSIC
+  fi
 fi
 
 echo >> configure.log