# HG changeset patch
# User Aleksej Bobylev <al.bobylev@gmail.com>
# Date 1521633908 -7200
# Node ID 5a63ab7642f2c19eb246f79fa5461a498af8d306
# Parent  7542315e1814d297d2de285e1c1f05afde84e7de
cook: add `fix math`; cook.conf: set LDFLAGS provided by `fix ld` by default.

diff -r 7542315e1814 -r 5a63ab7642f2 cook
--- a/cook	Mon Mar 19 22:48:21 2018 +0200
+++ b/cook	Wed Mar 21 14:05:08 2018 +0200
@@ -547,6 +547,19 @@
 				echo "fix libtool: warning: libtool absent, nothing to fix."
 			fi
 			;;
+		math)
+			# fix C++ math issue introduced in Glibc 2.26:
+			# error: '__builtin_isnan' is not a member of 'std'
+			#   if (std::isnan(N)) {
+			#            ^
+			find $src -type f -exec sed -i '
+				s|std::signbit|__builtin_signbit|g;
+				s|std::isnan|__builtin_isnan|g;
+				s|std::isinf|__builtin_isinf_sign|g;
+				s|std::isfinite|__builtin_isfinite|g;
+				s|std::isnormal|__builtin_isnormal|g
+				' '{}' \;
+			;;
 	esac
 }
 
@@ -614,8 +627,8 @@
 	# Export flags and path to be used by make and receipt.
 	DESTDIR="$pkgdir/install"
 	# FIXME: L10n: Is this the right time for 'LC_ALL=C LANG=C'?
-	export DESTDIR MAKEFLAGS CFLAGS CXXFLAGS CONFIG_SITE LC_ALL=C LANG=C
-	#LDFLAGS
+	export DESTDIR MAKEFLAGS CFLAGS CXXFLAGS CONFIG_SITE LC_ALL=C LANG=C \
+	LDFLAGS
 
 	# BUILD_DEPENDS may vary depending on the ARCH
 	case "$ARCH" in
@@ -759,7 +772,7 @@
 	if grep -q ^compile_rules $receipt; then
 		_ 'Executing: %s' 'compile_rules'
 		echo "CFLAGS   : $CFLAGS"
-		#echo "LDFLAGS  : $LDFLAGS"
+		echo "LDFLAGS  : $LDFLAGS"
 		[ -d "$src" ] && cd $src
 		patchit
 
diff -r 7542315e1814 -r 5a63ab7642f2 cook.conf
--- a/cook.conf	Mon Mar 19 22:48:21 2018 +0200
+++ b/cook.conf	Wed Mar 21 14:05:08 2018 +0200
@@ -91,6 +91,12 @@
 # Binutils 2.22 breaks many packages built without LDFLAGS set correctly.
 #LDFLAGS="-Wl,--copy-dt-needed-entries -lXt"
 
+# These LDFLAGS will minify runtime dependencies (show by ldd)
+# in the most cases when libtool used.
+#   https://bugzilla.gnome.org/show_bug.cgi?id=655517
+#   https://wiki.gentoo.org/wiki/Project:Quality_Assurance/As-needed
+export LDFLAGS="-Wl,-Os,--as-needed"
+
 # Default tool prefix for Binutils.
 TOOLPREFIX="${HOST_SYSTEM}-"