Fix ?: statements.

Omitting the first branch in ?: is a GNU extension.  Cute,
but not supported by other compilers.  Replaced mostly
by explicit tests.  Calls to getenv() simply are repeated
on non-GNU compilers.

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>

1 files changed, 4 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index e7f5a2e16f..e4f4664572 100644
--- a/cache.h
+++ b/cache.h
@@ -58,7 +58,11 @@
  * We accept older names for now but warn.
  */
 extern char *gitenv_bc(const char *);
+#ifdef __GNUC__
 #define gitenv(e) (getenv(e) ? : gitenv_bc(e))
+#else
+#define gitenv(e) (getenv(e) ? getenv(e) : gitenv_bc(e))
+#endif
 
 /*
  * Basic data structures for the directory cache