[PATCH 3/4] refs: remove NO_SYMLINK_HEAD

[Junio C Hamano <gitster@pobox.com>]

This step is for Git 3.0.

Remove the build-time setting NO_SYMLINK_HEAD that is used to
override the end-user supplied core.preferSymlinkRefs and force
use of textual symrefs, as core.preferSymlinkRefs is now gone
and we use textual symrefs only.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Makefile                            | 6 ------
 config.mak.uname                    | 3 ---
 configure.ac                        | 3 ---
 contrib/buildsystems/CMakeLists.txt | 2 +-
 4 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index 275a5ee3c9..029a468702 100644
--- a/Makefile
+++ b/Makefile
@@ -81,9 +81,6 @@ include shared.mak
 #
 # Define NO_SYS_SELECT_H if you don't have sys/select.h.
 #
-# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
-# Enable it on Windows.  By default, symrefs are still used.
-#
 # Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
 # tests.  These tests take up a significant amount of the total test time
 # but are not needed unless you plan to talk to SVN repos.
@@ -1767,9 +1764,6 @@ ifdef OPEN_RETURNS_EINTR
 	COMPAT_CFLAGS += -DOPEN_RETURNS_EINTR
 	COMPAT_OBJS += compat/open.o
 endif
-ifdef NO_SYMLINK_HEAD
-	BASIC_CFLAGS += -DNO_SYMLINK_HEAD
-endif
 ifdef NO_GETTEXT
 	BASIC_CFLAGS += -DNO_GETTEXT
 	USE_GETTEXT_SCHEME ?= fallthrough
diff --git a/config.mak.uname b/config.mak.uname
index d5112168a4..a38b152312 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -238,7 +238,6 @@ ifeq ($(uname_O),Cygwin)
 		NO_D_TYPE_IN_DIRENT = YesPlease
 		NO_STRCASESTR = YesPlease
 		NO_MEMMEM = YesPlease
-		NO_SYMLINK_HEAD = YesPlease
 		NO_IPV6 = YesPlease
 		OLD_ICONV = UnfortunatelyYes
 		# There are conflicting reports about this.
@@ -446,7 +445,6 @@ ifeq ($(uname_S),Windows)
 	NEEDS_CRYPTO_WITH_SSL = YesPlease
 	NO_LIBGEN_H = YesPlease
 	NO_POLL = YesPlease
-	NO_SYMLINK_HEAD = YesPlease
 	NO_IPV6 = YesPlease
 	NO_SETENV = YesPlease
 	NO_STRCASESTR = YesPlease
@@ -661,7 +659,6 @@ ifeq ($(uname_S),MINGW)
 	NEEDS_CRYPTO_WITH_SSL = YesPlease
 	NO_LIBGEN_H = YesPlease
 	NO_POLL = YesPlease
-	NO_SYMLINK_HEAD = YesPlease
 	NO_SETENV = YesPlease
 	NO_STRCASESTR = YesPlease
 	NO_STRLCPY = YesPlease
diff --git a/configure.ac b/configure.ac
index d1a96da14e..307349f323 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1195,9 +1195,6 @@ AC_COMPILE_IFELSE([BSD_SYSCTL_SRC],
 GIT_CONF_SUBST([HAVE_BSD_SYSCTL])
 
 ## Other checks.
-# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
-# Enable it on Windows.  By default, symrefs are still used.
-#
 # Define NO_PTHREADS if we do not have pthreads.
 #
 # Define PTHREAD_LIBS to the linker flag used for Pthread support.
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 832f46b316..d6bce22d34 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -267,7 +267,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
 	endif()
 	include_directories(${CMAKE_SOURCE_DIR}/compat/win32)
 	add_compile_definitions(HAVE_ALLOCA_H NO_POSIX_GOODIES NATIVE_CRLF NO_UNIX_SOCKETS WIN32
-				_CONSOLE DETECT_MSYS_TTY STRIP_EXTENSION=".exe"  NO_SYMLINK_HEAD UNRELIABLE_FSTAT
+				_CONSOLE DETECT_MSYS_TTY STRIP_EXTENSION=".exe" UNRELIABLE_FSTAT
 				NOGDI OBJECT_CREATION_MODE=1 __USE_MINGW_ANSI_STDIO=0
 				USE_NED_ALLOCATOR OVERRIDE_STRDUP MMAP_PREVENTS_DELETE USE_WIN32_MMAP
 				HAVE_WPGMPTR ENSURE_MSYSTEM_IS_SET HAVE_RTLGENRANDOM)
-- 
2.46.1-742-g4240f61078