package/pngquant: fix target build

Pngquant 2.10 introduced a bundled library libimagequant, Makefile passes $LIQCONFIGUREFLAGS to the configure script of libimagequant before building this library:
https://github.com/pornel/pngquant/blob/master/Makefile#L27

This variable is filled by configure with the content of $LIQCONFIGURE
https://github.com/pornel/pngquant/blob/master/configure#L553

We need to pass CC/CFLAGS/LDFLAGS as parameter to configure to fill $LIQCONFIGURE with correct values in order to use the target toolchain for building libimagequant:
https://github.com/pornel/pngquant/blob/master/configure#L56

Fixes
http://autobuild.buildroot.net/results/ab1/ab1193db9d76adc02be44d6f273e0986952df3e2/

---
 package/pngquant/pngquant.mk | 1 +
 1 file changed, 1 insertion(+)

index a602cbef5..1ce8359d4 100644
@@ -22,6 +22,7 @@ define PNGQUANT_CONFIGURE_CMDS
 		./configure --prefix=/usr \
 		$(if $(BR2_PACKAGE_LCMS2),--with-lcms2,--without-lcms2) \
 		$(if $(BR2_X86_CPU_HAS_SSE),--enable-sse,--disable-sse) \
+		$(TARGET_CONFIGURE_OPTS) \
 	)
 endef
 

2.11.0

Hello,

Applied to master, thanks.

Thomas

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com