stop using fnmatch (either native or compat)

Since v1.8.4 (about six months ago) wildmatch is used as default
replacement for fnmatch. We have seen only one fix since so wildmatch
probably has done a good job as fnmatch replacement. This concludes
the fnmatch->wildmatch transition by no longer relying on fnmatch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Makefile

@@ -101,14 +101,6 @@ all::
 #
 # Define NO_MKSTEMPS if you don't have mkstemps in the C library.
 #
-# Define NO_FNMATCH if you don't have fnmatch in the C library.
-#
-# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the
-# FNM_CASEFOLD GNU extension.
-#
-# Define NO_WILDMATCH if you do not want to use Git's wildmatch
-# implementation as fnmatch
-#
 # Define NO_GECOS_IN_PWENT if you don't have pw_gecos in struct passwd
 # in the C library.
 #
@@ -1271,20 +1263,6 @@ endif
 ifdef NO_STRTOULL
 	COMPAT_CFLAGS += -DNO_STRTOULL
 endif
-ifdef NO_FNMATCH
-	COMPAT_CFLAGS += -Icompat/fnmatch
-	COMPAT_CFLAGS += -DNO_FNMATCH
-	COMPAT_OBJS += compat/fnmatch/fnmatch.o
-else
-ifdef NO_FNMATCH_CASEFOLD
-	COMPAT_CFLAGS += -Icompat/fnmatch
-	COMPAT_CFLAGS += -DNO_FNMATCH_CASEFOLD
-	COMPAT_OBJS += compat/fnmatch/fnmatch.o
-endif
-endif
-ifndef NO_WILDMATCH
-	COMPAT_CFLAGS += -DUSE_WILDMATCH
-endif
 ifdef NO_SETENV
 	COMPAT_CFLAGS += -DNO_SETENV
 	COMPAT_OBJS += compat/setenv.o

config.mak.uname

@@ -108,7 +108,6 @@ ifeq ($(uname_S),SunOS)
 	NO_MKDTEMP = YesPlease
 	NO_MKSTEMPS = YesPlease
 	NO_REGEX = YesPlease
-	NO_FNMATCH_CASEFOLD = YesPlease
 	NO_MSGFMT_EXTENDED_OPTIONS = YesPlease
 	HAVE_DEV_TTY = YesPlease
 	ifeq ($(uname_R),5.6)
@@ -259,7 +258,6 @@ ifeq ($(uname_S),IRIX)
 	# issue, comment out the NO_MMAP statement.
 	NO_MMAP = YesPlease
 	NO_REGEX = YesPlease
-	NO_FNMATCH_CASEFOLD = YesPlease
 	SNPRINTF_RETURNS_BOGUS = YesPlease
 	SHELL_PATH = /usr/gnu/bin/bash
 	NEEDS_LIBGEN = YesPlease
@@ -279,7 +277,6 @@ ifeq ($(uname_S),IRIX64)
 	# issue, comment out the NO_MMAP statement.
 	NO_MMAP = YesPlease
 	NO_REGEX = YesPlease
-	NO_FNMATCH_CASEFOLD = YesPlease
 	SNPRINTF_RETURNS_BOGUS = YesPlease
 	SHELL_PATH = /usr/gnu/bin/bash
 	NEEDS_LIBGEN = YesPlease
@@ -296,7 +293,6 @@ ifeq ($(uname_S),HP-UX)
 	NO_UNSETENV = YesPlease
 	NO_HSTRERROR = YesPlease
 	NO_SYS_SELECT_H = YesPlease
-	NO_FNMATCH_CASEFOLD = YesPlease
 	SNPRINTF_RETURNS_BOGUS = YesPlease
 	NO_NSEC = YesPlease
 	ifeq ($(uname_R),B.11.00)
@@ -327,7 +323,6 @@ ifeq ($(uname_S),Windows)
 	NO_UNSETENV = YesPlease
 	NO_STRCASESTR = YesPlease
 	NO_STRLCPY = YesPlease
-	NO_FNMATCH = YesPlease
 	NO_MEMMEM = YesPlease
 	# NEEDS_LIBICONV = YesPlease
 	NO_ICONV = YesPlease
@@ -389,13 +384,11 @@ ifeq ($(uname_S),Interix)
 		NO_INET_NTOP = YesPlease
 		NO_INET_PTON = YesPlease
 		NO_SOCKADDR_STORAGE = YesPlease
-		NO_FNMATCH_CASEFOLD = YesPlease
 	endif
 	ifeq ($(uname_R),5.2)
 		NO_INET_NTOP = YesPlease
 		NO_INET_PTON = YesPlease
 		NO_SOCKADDR_STORAGE = YesPlease
-		NO_FNMATCH_CASEFOLD = YesPlease
 	endif
 endif
 ifeq ($(uname_S),Minix)
@@ -440,7 +433,6 @@ ifeq ($(uname_S),NONSTOP_KERNEL)
 	NO_D_TYPE_IN_DIRENT = YesPlease
 	NO_HSTRERROR = YesPlease
 	NO_STRCASESTR = YesPlease
-	NO_FNMATCH_CASEFOLD = YesPlease
 	NO_MEMMEM = YesPlease
 	NO_STRLCPY = YesPlease
 	NO_SETENV = YesPlease
@@ -484,7 +476,6 @@ ifneq (,$(findstring MINGW,$(uname_S)))
 	NO_UNSETENV = YesPlease
 	NO_STRCASESTR = YesPlease
 	NO_STRLCPY = YesPlease
-	NO_FNMATCH = YesPlease
 	NO_MEMMEM = YesPlease
 	NEEDS_LIBICONV = YesPlease
 	NO_STRTOUMAX = YesPlease
@@ -538,7 +529,6 @@ ifeq ($(uname_S),QNX)
 	EXPAT_NEEDS_XMLPARSE_H = YesPlease
 	HAVE_STRINGS_H = YesPlease
 	NEEDS_SOCKET = YesPlease
-	NO_FNMATCH_CASEFOLD = YesPlease
 	NO_GETPAGESIZE = YesPlease
 	NO_ICONV = YesPlease
 	NO_MEMMEM = YesPlease

configure.ac

@@ -901,34 +901,6 @@ GIT_CHECK_FUNC(strcasestr,
 [NO_STRCASESTR=YesPlease])
 GIT_CONF_SUBST([NO_STRCASESTR])
 #
-# Define NO_FNMATCH if you don't have fnmatch
-GIT_CHECK_FUNC(fnmatch,
-[NO_FNMATCH=],
-[NO_FNMATCH=YesPlease])
-GIT_CONF_SUBST([NO_FNMATCH])
-#
-# Define NO_FNMATCH_CASEFOLD if your fnmatch function doesn't have the
-# FNM_CASEFOLD GNU extension.
-AC_CACHE_CHECK([whether the fnmatch function supports the FNMATCH_CASEFOLD GNU extension],
- [ac_cv_c_excellent_fnmatch], [
-AC_EGREP_CPP(yippeeyeswehaveit,
-	AC_LANG_PROGRAM([
-#include <fnmatch.h>
-],
-[#ifdef FNM_CASEFOLD
-yippeeyeswehaveit
-#endif
-]),
-	[ac_cv_c_excellent_fnmatch=yes],
-	[ac_cv_c_excellent_fnmatch=no])
-])
-if test $ac_cv_c_excellent_fnmatch = yes; then
-	NO_FNMATCH_CASEFOLD=
-else
-	NO_FNMATCH_CASEFOLD=YesPlease
-fi
-GIT_CONF_SUBST([NO_FNMATCH_CASEFOLD])
-#
 # Define NO_MEMMEM if you don't have memmem.
 GIT_CHECK_FUNC(memmem,
 [NO_MEMMEM=],

git-compat-util.h

@@ -116,9 +116,6 @@
 #include <sys/time.h>
 #include <time.h>
 #include <signal.h>
-#ifndef USE_WILDMATCH
-#include <fnmatch.h>
-#endif
 #include <assert.h>
 #include <regex.h>
 #include <utime.h>
@@ -304,16 +301,7 @@ extern char *gitbasename(char *);
 
 #include "compat/bswap.h"
 
-#ifdef USE_WILDMATCH
 #include "wildmatch.h"
-#define FNM_PATHNAME WM_PATHNAME
-#define FNM_CASEFOLD WM_CASEFOLD
-#define FNM_NOMATCH  WM_NOMATCH
-static inline int fnmatch(const char *pattern, const char *string, int flags)
-{
-	return wildmatch(pattern, string, flags, NULL);
-}
-#endif
 
 /* General helper functions */
 extern void vreportf(const char *prefix, const char *err, va_list params);

t/t3070-wildmatch.sh

@@ -14,19 +14,6 @@ match() {
 	    ! test-wildmatch wildmatch '$3' '$4'
 	"
     fi
-    if [ $2 = 1 ]; then
-	test_expect_success "fnmatch:       match '$3' '$4'" "
-	    test-wildmatch fnmatch '$3' '$4'
-	"
-    elif [ $2 = 0 ]; then
-	test_expect_success "fnmatch:    no match '$3' '$4'" "
-	    ! test-wildmatch fnmatch '$3' '$4'
-	"
-#    else
-#	test_expect_success BROKEN_FNMATCH "fnmatch:       '$3' '$4'" "
-#	    ! test-wildmatch fnmatch '$3' '$4'
-#	"
-    fi
 }
 
 imatch() {

test-wildmatch.c

@@ -1,8 +1,4 @@
-#ifdef USE_WILDMATCH
-#undef USE_WILDMATCH  /* We need real fnmatch implementation here */
-#endif
 #include "cache.h"
-#include "wildmatch.h"
 
 int main(int argc, char **argv)
 {
@@ -20,8 +16,6 @@ int main(int argc, char **argv)
 		return !!wildmatch(argv[3], argv[2], WM_PATHNAME | WM_CASEFOLD, NULL);
 	else if (!strcmp(argv[1], "pathmatch"))
 		return !!wildmatch(argv[3], argv[2], 0, NULL);
-	else if (!strcmp(argv[1], "fnmatch"))
-		return !!fnmatch(argv[3], argv[2], FNM_PATHNAME);
 	else
 		return 1;
 }