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AX_CHECK_GD
Check for the gd library. (See http://www.boutell.com/gd/) If gd is found, the output variables GD_CFLAGS, GD_LDFLAGS and GD_LIBS will contain the compiler flags, linker flags and libraries necessary to use gd; otherwise, those variables will be empty. In addition, the symbol HAVE_GD is defined if the library is found, and the symbols HAVE_GD_GIF, HAVE_GD_JPEG and HAVE_GD_PNG are defined if the library supports creating images in gif, jpeg and png formats, respectively.
The user may use –with-gd=no or –without-gd to skip checking for the library. (The default is –with-gd=yes.) If the library is installed in an unusual location, –with-gd=DIR will cause the macro to look for gdlib-config in DIR/bin or, failing that, for the headers and libraries in DIR/include and DIR/lib.
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Copyright © 2008 Nick Markham markhn@rpi.edu
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.