[PATCH v4 1/2] config.mak.uname: set NO_MEMMEM only for functional version

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FreeBSD 6 introduced memmem(), but the implementation diverged
from what was standard everywhere else (including our "compat"
fallback).

FreeBSD 10.4 (went EOL in 2018) corrected the functionality bugs
but kept a suboptimal implementation until FreeBSD 11.4 (the last
version of FreeBSD 11, that went EOL in September 2021).

Let's draw the line to require FreeBSD 12 or newer, which allows us
to drop the special casing of FreeBSD 4.x and rely on the platform
implementation of memmem() unconditionally for all versions that are
still being supported.

Suggested-by: Brad Smith <brad@xxxxxxxxxxxx>
Helped-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@xxxxxxxxx>
---
 config.mak.uname | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/config.mak.uname b/config.mak.uname
index b12d4e168a..2b434df9e5 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -273,16 +273,13 @@ ifeq ($(uname_S),FreeBSD)
         ifeq ($(firstword $(subst -, ,$(uname_R))),10.1)
 		OLD_ICONV = YesPlease
         endif
-	NO_MEMMEM = YesPlease
+        ifeq ($(shell v=$(uname_R) && test $${v%%.*} -lt 12 && echo 1),1)
+		NO_MEMMEM = UnfortunatelyYes
+        endif
 	BASIC_CFLAGS += -I/usr/local/include
 	BASIC_LDFLAGS += -L/usr/local/lib
 	DIR_HAS_BSD_GROUP_SEMANTICS = YesPlease
 	USE_ST_TIMESPEC = YesPlease
-        ifeq ($(shell expr "$(uname_R)" : '4\.'),2)
-		PTHREAD_LIBS = -pthread
-		NO_UINTMAX_T = YesPlease
-		NO_STRTOUMAX = YesPlease
-        endif
 	PYTHON_PATH = /usr/local/bin/python
 	PERL_PATH = /usr/local/bin/perl
 	HAVE_PATHS_H = YesPlease
-- 
2.50.0.147.gafe0d4ec5b





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