Build issues

I'm trying to build libgd with local libz, libpng, and libjpeg, without freetype, fontconfig, threads, or iconv. The first issue is that there appears to be no option for no threads or no iconv. The next is that configure appears to ignore the paths for libz, libpng and libjpeg. Invoking configure with: LDFLAGS="-L/usr/build/interfaces/libpng-1.6.25 -L/usr/build/interfaces/zlib-1.2.8 -L/usr/build/interfaces/jpeg-9b" \ CFLAGS="-I/usr/build/interfaces/libpng-1.6.25 -I/usr/build/interfaces/zlib-1.2.8 -I/usr/build/interfaces/jpeg-9b -fPIC" \ ./configure --with-png=/usr/build/interfaces/libpng-1.6.26 \ --with-jpeg=/usr/build/interfaces/jpeg-9b \ --with-zlib=/usr/build/interfaces/zlib-1.2.6 \ --with-png=/usr/build/interfaces/libpng-1.6.25 \ --without-xpm \ --without-freetype \ --without-fontconfig \ --disable-shared Yields: ** Configuration summary for libgd 2.2.3:

   Support for Zlib:                 yes
   Support for PNG library:          no
   Support for JPEG library:         no
   Support for WebP library:         no
   Support for TIFF library:         no

Support for Freetype 2.x library: no Support for Fontconfig library: no

   Support for Xpm library:          no
   Support for liq library:          no
   Support for pthreads:             yes

When I go ahead and run make, the build dies with: libtool: compile: gcc -std=gnu99 -DHAVE_CONFIG_H -I. -Werror -I/usr/build/interfaces/libpng-1.6.25 -I/usr/build/interfaces/zlib-1.2.8 -I/usr/build/interfaces/jpeg-9b -fPIC -fvisibility=hidden -Wall -MT gdft.lo -MD -MP -MF .deps/gdft.Tpo -c gdft.c -o gdft.o cc1: warnings being treated as errors entities.h:17: warning: 'entities' defined but not used gdft.c:1635: warning: 'font_path' defined but not used make[2]: *** [gdft.lo] Error 1 make[2]: Leaving directory `/usr/build/interfaces/libgd-2.2.3/src' make[1]: *** [all] Error 2 make[1]: Leaving directory `/usr/build/interfaces/libgd-2.2.3/src' make: *** [all-recursive] Error 1 Any help will be greatly appreciated.