fix build with PDFium #1400
Description
We are upgrading to libvips 8.8.1 and looks like there are some changes made in 8.8.1 with pdfium linking and I get the following error when building vips:
`/usr/lib/gcc/x86_64-alpine-linux-musl/8.3.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lc++
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:750: libvips.la] Error 1
make[3]: *** [Makefile:877: install-recursive] Error 1
make[2]: *** [Makefile:632: install-recursive] Error 1
make[1]: *** [Makefile:943: install-strip] Error 2
make: *** [Makefile:9: build] Error 2
Command used to build libvips
aclocal && automake && \
./configure --prefix=/usr \
--with-pdfium-includes=/usr/include/pdfium \
--with-pdfium-libraries=/usr/lib \
--without-python \
--without-gsf \
--enable-debug=no \
--disable-dependency-tracking \
--disable-static \
--enable-silent-rules && \
make -s install-strip
Since alpine uses musl libc, I am not sure if glibc/libc++ works fine on musl. Any pointers on this?
Note: We are using the following patches already