I'm on a system which doesn't support shared libraries so everything it linked statically, but poppler fails to build as it doesn't pick up the static library dependency of libfontconfig which relies on libxml2.a and libiconv.a.

As shown here....

Scanning dependencies of target poppler
[ 71%] Built target poppler
Scanning dependencies of target pdfdetach
Linking CXX executable pdfdetach
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x1ca): undefined reference to `_XML_GetCurrentLineNumber'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x22c): undefined reference to `_XML_GetCurrentLineNumber'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x14c4): undefined reference to `_XML_ParserCreate'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x1508): undefined reference to `_XML_SetUserData'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x1518): undefined reference to `_XML_SetDoctypeDeclHandler'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x1528): undefined reference to `_XML_SetElementHandler'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x153a): undefined reference to `_XML_SetCharacterDataHandler'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x1542): undefined reference to `_XML_GetBuffer'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x154e): undefined reference to `_XML_ParseBuffer'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x15b2): undefined reference to `_XML_ParserFree'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x185e): undefined reference to `_XML_GetErrorCode'
/usr/lib/libfontconfig.a(fcxml.o):fcxml.o:(.text+0x1866): undefined reference to `_XML_ErrorString'
/usr/lib/libfontconfig.a(fcfreetype.o):fcfreetype.o:(.text+0x20c4): undefined reference to `_libiconv_open'
/usr/lib/libfontconfig.a(fcfreetype.o):fcfreetype.o:(.text+0x21d4): undefined reference to `_libiconv'
/usr/lib/libfontconfig.a(fcfreetype.o):fcfreetype.o:(.text+0x22fa): undefined reference to `_libiconv_close'
/usr/lib/libfontconfig.a(fcfreetype.o):fcfreetype.o:(.text+0x29bc): undefined reference to `_libiconv_close'
/usr/lib/libfontconfig.a(fcfreetype.o):fcfreetype.o:(.text+0x2c12): undefined reference to `_libiconv_close'
collect2: ld returned 1 exit status
make[2]: *** [utils/pdfdetach] Error 1
make[1]: *** [utils/CMakeFiles/pdfdetach.dir/all] Error 2
make: *** [all] Error 2

I can test a patch if anyone can direct me on the correct way to patch the CMake build system.

Thanks!