# [PATCH v2 1/1] Makefile: make curl-config path configurable

3 messages from 2015-10-05 to 2015-10-05. Participants: Remi Pommarel, Jonathan Nieder.
Thread: https://gitlist.dev/t/40485

## Remi Pommarel, 2015-10-05 19:20

Subject: [PATCH v2 1/1] Makefile: make curl-config path configurable
Message-ID: <1444072858-24399-1-git-send-email-repk@triplefau.lt>
URL: https://gitlist.dev/e/1444072858-24399-1-git-send-email-repk%40triplefau.lt

```
There are situations, ie during cross compilation, where curl-config program
is not present in the PATH.

Make the makefile use a configurable curl-config program passed through
CURL_CONFIG variable which can be set through config.mak.

Also make this variable tunable through use of autoconf/configure. Configure
will set CURL_CONFIG variable in config.mak.autogen to whatever value has been
passed to ac_cv_prog_CURL_CONFIG.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
---
 Makefile     |  9 +++++++--
 configure.ac | 13 +++++++++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index ce0cfe2..59528b4 100644
--- a/Makefile
+++ b/Makefile
@@ -39,6 +39,10 @@ all::
 # Define CURLDIR=/foo/bar if your curl header and library files are in
 # /foo/bar/include and /foo/bar/lib directories.
 #
+# Define CURL_CONFIG to curl's configuration program that gives informations
+# about the library (ie curl's version, cflags, ...) . If not set it defaults
+# to 'curl-config'.
+#
 # Define NO_EXPAT if you do not have expat installed.  git-http-push is
 # not built, and you cannot push using http:// and https:// transports (dumb).
 #
@@ -374,6 +378,7 @@ LDFLAGS =
 ALL_CFLAGS = $(CPPFLAGS) $(CFLAGS)
 ALL_LDFLAGS = $(LDFLAGS)
 STRIP ?= strip
+CURL_CONFIG = curl-config
 
 # Among the variables below, these:
 #   gitexecdir
@@ -1059,13 +1064,13 @@ else
 	REMOTE_CURL_NAMES = $(REMOTE_CURL_PRIMARY) $(REMOTE_CURL_ALIASES)
 	PROGRAM_OBJS += http-fetch.o
 	PROGRAMS += $(REMOTE_CURL_NAMES)
-	curl_check := $(shell (echo 070908; curl-config --vernum | sed -e '/^70[BC]/s/^/0/') 2>/dev/null | sort -r | sed -ne 2p)
+	curl_check := $(shell (echo 070908; $(CURL_CONFIG) --vernum | sed -e '/^70[BC]/s/^/0/') 2>/dev/null | sort -r | sed -ne 2p)
 	ifeq "$(curl_check)" "070908"
 		ifndef NO_EXPAT
 			PROGRAM_OBJS += http-push.o
 		endif
 	endif
-	curl_check := $(shell (echo 072200; curl-config --vernum | sed -e '/^70[BC]/s/^/0/') 2>/dev/null | sort -r | sed -ne 2p)
+	curl_check := $(shell (echo 072200; $(CURL_CONFIG) --vernum | sed -e '/^70[BC]/s/^/0/') 2>/dev/null | sort -r | sed -ne 2p)
 	ifeq "$(curl_check)" "072200"
 		USE_CURL_FOR_IMAP_SEND = YesPlease
 	endif
diff --git a/configure.ac b/configure.ac
index 14012fa..01b07ad 100644
--- a/configure.ac
+++ b/configure.ac
@@ -525,6 +525,19 @@ GIT_UNSTASH_FLAGS($CURLDIR)
 
 GIT_CONF_SUBST([NO_CURL])
 
+if test -z "$NO_CURL"; then
+
+AC_CHECK_PROG([CURL_CONFIG], [curl-config],
+[curl-config],
+[no])
+
+if test $CURL_CONFIG != no; then
+    GIT_CONF_SUBST([CURL_CONFIG])
+fi
+
+fi
+
+
 #
 # Define NO_EXPAT if you do not have expat installed.  git-http-push is
 # not built, and you cannot push using http:// and https:// transports.
-- 
2.0.1

```

## Jonathan Nieder, 2015-10-05 19:31

Subject: Re: [PATCH v2 1/1] Makefile: make curl-config path configurable
Message-ID: <20151005193127.GC11993@google.com>
URL: https://gitlist.dev/e/20151005193127.GC11993%40google.com
In-Reply-To: <1444072858-24399-1-git-send-email-repk@triplefau.lt>

```
Remi Pommarel wrote:

> There are situations, ie during cross compilation, where curl-config program
> is not present in the PATH.

s/ie/e.g.,/

[...]
> @@ -374,6 +378,7 @@ LDFLAGS =
>  ALL_CFLAGS = $(CPPFLAGS) $(CFLAGS)
>  ALL_LDFLAGS = $(LDFLAGS)
>  STRIP ?= strip
> +CURL_CONFIG = curl-config

Could this go down with the other programs (CC, AR, FIND, et al)?

The rest looks good.

Jonathan

```

## Remi Pommarel, 2015-10-05 20:25

Subject: Re: [PATCH v2 1/1] Makefile: make curl-config path configurable
Message-ID: <20151005202508.GB386@cruxbox>
URL: https://gitlist.dev/e/20151005202508.GB386%40cruxbox
In-Reply-To: <20151005193127.GC11993@google.com>

```
On Mon, Oct 05, 2015 at 12:31:27PM -0700, Jonathan Nieder wrote:
> Remi Pommarel wrote:
> 
> > There are situations, ie during cross compilation, where curl-config program
> > is not present in the PATH.
> 
> s/ie/e.g.,/

Oups sorry about that.

> 
> [...]
> > @@ -374,6 +378,7 @@ LDFLAGS =
> >  ALL_CFLAGS = $(CPPFLAGS) $(CFLAGS)
> >  ALL_LDFLAGS = $(LDFLAGS)
> >  STRIP ?= strip
> > +CURL_CONFIG = curl-config
> 
> Could this go down with the other programs (CC, AR, FIND, et al)?

Yes sure that makes sense. I'll resend a modified patch, thanks

-- 
Rémi

```