[PATCH] macos: do let the build find the gettext headers/libraries/msgfmt

["Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

Apparently a recent Homebrew update now installs `gettext` into a
subdirectory under /usr/local/, requiring the CFLAGS/LDFLAGS to list
explicit directories _even_ when asking to force-link the `gettext`
package.

Likewise, the `msgfmt` tool is no longer in the `PATH`.

Let's work around this issue.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
    Prepare for Homebrew changing the gettext package
    
    In an early Azure Pipelines preview of what is to come, I saw the 
    osx-clang and osx-gcc jobs fail consistently.
    
    This patch tries to prevent that from affecting our CI/PR builds.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-616%2Fdscho%2Fbrew-gettext-update-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-616/dscho/brew-gettext-update-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/616

 config.mak.uname | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/config.mak.uname b/config.mak.uname
index 0ab8e009383..540d124d2ef 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -133,8 +133,11 @@ ifeq ($(uname_S),Darwin)
 	HAVE_BSD_SYSCTL = YesPlease
 	FREAD_READS_DIRECTORIES = UnfortunatelyYes
 	HAVE_NS_GET_EXECUTABLE_PATH = YesPlease
-	BASIC_CFLAGS += -I/usr/local/include
-	BASIC_LDFLAGS += -L/usr/local/lib
+	BASIC_CFLAGS += -I/usr/local/include -I/usr/local/opt/gettext/include
+	BASIC_LDFLAGS += -L/usr/local/lib -L/usr/local/opt/gettext/lib
+	ifeq ($(shell test -x /usr/local/opt/gettext/bin/msgfmt && echo y),y)
+		MSGFMT = /usr/local/opt/gettext/bin/msgfmt
+	endif
 endif
 ifeq ($(uname_S),SunOS)
 	NEEDS_SOCKET = YesPlease

base-commit: e870325ee8575d5c3d7afe0ba2c9be072c692b65
-- 
gitgitgadget