compat: remove gitmkdtemp()

gitmkdtemp() has become a trivial wrapper around git_mkdtemp().  Remove
this now unnecessary layer of indirection.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: rscharfe

Makefile

@@ -1917,7 +1917,6 @@ ifdef NO_SETENV
 endif
 ifdef NO_MKDTEMP
 	COMPAT_CFLAGS += -DNO_MKDTEMP
-	COMPAT_OBJS += compat/mkdtemp.o
 endif
 ifdef MKDIR_WO_TRAILING_SLASH
 	COMPAT_CFLAGS += -DMKDIR_WO_TRAILING_SLASH

compat/mkdtemp.c

@@ -329,8 +329,7 @@ int gitsetenv(const char *, const char *, int);
 #endif
 
 #ifdef NO_MKDTEMP
-#define mkdtemp gitmkdtemp
-char *gitmkdtemp(char *);
+#define mkdtemp git_mkdtemp
 #endif
 
 #ifdef NO_UNSETENV

compat/posix.h

@@ -411,10 +411,6 @@ if(NOT HAVE_SETENV)
 	list(APPEND compat_SOURCES compat/setenv.c)
 endif()
 
-if(NOT HAVE_MKDTEMP)
-	list(APPEND compat_SOURCES compat/mkdtemp.c)
-endif()
-
 if(NOT HAVE_PREAD)
 	list(APPEND compat_SOURCES compat/pread.c)
 endif()

contrib/buildsystems/CMakeLists.txt

@@ -1401,7 +1401,7 @@ checkfuncs = {
   'strlcpy' : ['strlcpy.c'],
   'strtoull' : [],
   'setenv' : ['setenv.c'],
-  'mkdtemp' : ['mkdtemp.c'],
+  'mkdtemp' : [],
   'initgroups' : [],
   'strtoumax' : ['strtoumax.c', 'strtoimax.c'],
   'pread' : ['pread.c'],