0001-Add-CC-CXX-and-FC-to-dpkg-buildflags.patch

From 10c97d9c5b50a27a80b2d09bd2df9a283eca455f Mon Sep 17 00:00:00 2001
From: Sylvestre Ledru <sylvestre.ledru@scilab-enterprises.com>
Date: Wed, 29 Aug 2012 17:41:18 +0200
Subject: [PATCH] Add CC, CXX and FC to dpkg-buildflags

---
 man/dpkg-buildflags.1      |    9 +++++++++
 scripts/Dpkg/BuildFlags.pm |    9 +++++++++
 scripts/mk/buildflags.mk   |    5 ++++-
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/man/dpkg-buildflags.1 b/man/dpkg-buildflags.1
index ea61306..63ed7a0 100644
--- a/man/dpkg-buildflags.1
+++ b/man/dpkg-buildflags.1
@@ -139,6 +139,15 @@ Show the version and exit.
 .
 .SH SUPPORTED FLAGS
 .TP
+.B CC
+Default C compiler.
+.TP
+.B CXX
+Default C++ compiler.
+.TP
+.B FC
+Default Fortran compiler.
+.TP
 .B CFLAGS
 Options for the C compiler. The default value set by the vendor
 includes \fI\-g\fP and the default optimization level (\fI\-O2\fP usually,
diff --git a/scripts/Dpkg/BuildFlags.pm b/scripts/Dpkg/BuildFlags.pm
index 5858dca..a7b273f 100644
--- a/scripts/Dpkg/BuildFlags.pm
+++ b/scripts/Dpkg/BuildFlags.pm
@@ -73,6 +73,9 @@ sub load_vendor_defaults {
     my $build_opts = Dpkg::BuildOptions->new();
     my $default_flags = $build_opts->has("noopt") ? "-g -O0" : "-g -O2";
     $self->{flags} = {
+	CC       => '/usr/bin/cc',
+	CXX      => '/usr/bin/c++',
+	FC       => 'gfortran',
 	CPPFLAGS => '',
 	CFLAGS   => $default_flags,
 	CXXFLAGS => $default_flags,
@@ -80,6 +83,9 @@ sub load_vendor_defaults {
 	LDFLAGS  => '',
     };
     $self->{origin} = {
+	CC       => 'vendor',
+	CXX      => 'vendor',
+	FC       => 'vendor',
 	CPPFLAGS => 'vendor',
 	CFLAGS   => 'vendor',
 	CXXFLAGS => 'vendor',
@@ -87,6 +93,9 @@ sub load_vendor_defaults {
 	LDFLAGS  => 'vendor',
     };
     $self->{maintainer} = {
+	CC       => 0,
+	CXX      => 0,
+	FC       => 0,
 	CPPFLAGS => 0,
 	CFLAGS   => 0,
 	CXXFLAGS => 0,
diff --git a/scripts/mk/buildflags.mk b/scripts/mk/buildflags.mk
index 8f0f215..ba17bcc 100644
--- a/scripts/mk/buildflags.mk
+++ b/scripts/mk/buildflags.mk
@@ -1,5 +1,8 @@
 # This Makefile snippet defines the following variables:
 #
+# CC: the C compiler
+# CXX: the C++ compiler
+# FC: the Fortran compiler
 # CFLAGS: flags for the C compiler
 # CPPFLAGS: flags for the C preprocessor
 # CXXFLAGS: flags for the C++ compiler
@@ -14,7 +17,7 @@
 
 dpkg_late_eval ?= $(or $(value DPKG_CACHE_$(1)),$(eval DPKG_CACHE_$(1) := $(shell $(2)))$(value DPKG_CACHE_$(1)))
 
-DPKG_BUILDFLAGS_LIST = CFLAGS CPPFLAGS CXXFLAGS FFLAGS LDFLAGS
+DPKG_BUILDFLAGS_LIST = CC CXX FC CFLAGS CPPFLAGS CXXFLAGS FFLAGS LDFLAGS
 
 define dpkg_buildflags_export_envvar
 ifdef $(1)
-- 
1.7.10.4