cairo-matrix.c:1172 errors due to undeclared DBL_EPSILON. I'm tryin to cross-compile from linux to Mingw. This compiler and environment is not much tested - I first assumed that problem is in the environment, but quick grepping for "DBL_EPSILON" in cairo tree suggests that there's no configure check or anything to workaround the situation when system headers do not define it.
Same problem here while cross-compiling cairo-1.12.16. I am on a Linux 32 bit operating system (Slackware 14.1) and I have a cross-compiler based on: - binutils-2.24.51 - gcc-4.9.1 - mingwrt-3.20.2 - w32api-3.17.2 Here is how to reproduce: $ PKG_CONFIG_PATH="/usr/i686-pc-mingw32/lib/pkgconfig" $ ./configure --prefix=/usr/i686-pc-mingw32 --host=i686-pc-mingw32 --disable-lto --disable-gtk-doc --disable-test-surfaces --disable-gcov --disable-xlib --disable-xlib-xrender --disable-xcb --disable-quartz --disable-quartz-font --disable-quartz-image --disable-os2 --disable-beos --disable-directfb --disable-atomic --enable-win32 --enable-win32-font --enable-png --enable-ft --enable-ps --enable-pdf --enable-svg --disable-pthread $ make [...] CC cairo-matrix.lo cairo-matrix.c: In function '_cairo_matrix_to_pixman_matrix_offset': cairo-matrix.c:1172:24: error: 'DBL_EPSILON' undeclared (first use in this function) if (fabs (den) < DBL_EPSILON) ^ cairo-matrix.c:1172:24: note: each undeclared identifier is reported only once for each function it appears in make[3]: *** [cairo-matrix.lo] Error 1 make[3]: Leaving directory `/tmp/build/cairo-1.12.16/src' make[2]: *** [all] Error 2 make[2]: Leaving directory `/tmp/build/cairo-1.12.16/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/tmp/build/cairo-1.12.16' make: *** [all] Error 2 Any idea to solve this problem?
Cross compiling works fine with mingw-64. The script at http://rodrigo.dualnot.com/en/mingw-cross-compiler/ works perfectly on Ubuntu 14.04.
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