e87de7cab4 ("grep: un-break building with PCRE < 8.32", 2017-05-25)
added a restriction for JIT support that is no longer needed after
pcre_jit_exec() calls were removed.
Reorganize the definitions in grep.h so that JIT support could be
detected early and NO_LIBPCRE1_JIT could be used reliably to enforce
JIT doesn't get used.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@xxxxxxxxx>
---
Makefile | 9 ++-------
grep.h | 4 +---
2 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/Makefile b/Makefile
index 11ccea4071..7e0e6cc129 100644
--- a/Makefile
+++ b/Makefile
@@ -34,13 +34,8 @@ all::
# library. Support for version 1 will likely be removed in some future
# release of Git, as upstream has all but abandoned it.
#
-# When using USE_LIBPCRE1, define NO_LIBPCRE1_JIT if the PCRE v1
-# library is compiled without --enable-jit. We will auto-detect
-# whether the version of the PCRE v1 library in use has JIT support at
-# all, but we unfortunately can't auto-detect whether JIT support
-# hasn't been compiled in in an otherwise JIT-supporting version. If
-# you have link-time errors about a missing `pcre_jit_exec` define
-# this, or recompile PCRE v1 with --enable-jit.
+# When using USE_LIBPCRE1, define NO_LIBPCRE1_JIT if you want to
+# disable JIT even if supported by your library.
#
# Define LIBPCREDIR=/foo/bar if your PCRE header and library files are
# in /foo/bar/include and /foo/bar/lib directories. Which version of
diff --git a/grep.h b/grep.h
index a405fc870c..2a74e28d94 100644
--- a/grep.h
+++ b/grep.h
@@ -3,14 +3,12 @@
#include "color.h"
#ifdef USE_LIBPCRE1
#include <pcre.h>
-#ifdef PCRE_CONFIG_JIT
-#if PCRE_MAJOR >= 8 && PCRE_MINOR >= 32
#ifndef NO_LIBPCRE1_JIT
+#ifdef PCRE_CONFIG_JIT
#define GIT_PCRE1_USE_JIT
#define GIT_PCRE_STUDY_JIT_COMPILE PCRE_STUDY_JIT_COMPILE
#endif
#endif
-#endif
#ifndef GIT_PCRE_STUDY_JIT_COMPILE
#define GIT_PCRE_STUDY_JIT_COMPILE 0
#endif
--
2.22.0
