120 lines
3.1 KiB
Plaintext
120 lines
3.1 KiB
Plaintext
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dnl From FIND_MOTIF and ACX_PTHREAD, without much understanding
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dnl
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dnl FIND_NIFTI[ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]
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dnl ------------------------------------------------
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dnl
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dnl Find NIFTI libraries and headers
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dnl
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dnl Put compile stuff in NIFTI_INCLUDES
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dnl Put link stuff in NIFTI_LIBS
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dnl Define HAVE_NIFTI if found
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dnl
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AC_DEFUN([FIND_NIFTI], [
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AC_REQUIRE([AC_PATH_XTRA])
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NIFTI_INCLUDES=""
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NIFTI_LIBS=""
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AC_ARG_WITH(nifti,
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AS_HELP_STRING([--without-nifti], [build without nifti (default: test)]))
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# Treat --without-nifti like --without-nifti-includes --without-nifti-libraries.
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if test "$with_nifti" = "no"; then
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NIFTI_INCLUDES=no
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NIFTI_LIBS=no
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fi
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AC_ARG_WITH(nifti-includes,
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AS_HELP_STRING([--with-nifti-includes=DIR], [libnifti includes are in DIR]),
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NIFTI_INCLUDES="-I$withval")
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AC_ARG_WITH(nifti-libraries,
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AS_HELP_STRING([--with-nifti-libraries=DIR], [libnifti libraries are in DIR]),
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NIFTI_LIBS="-L$withval -lnifti")
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AC_MSG_CHECKING(for NIFTI)
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# Look for nifti1_io.h ... usually in /usr/include/nifti
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if test "$NIFTI_INCLUDES" = ""; then
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nifti_save_CFLAGS="$CFLAGS"
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# annoyingly, the header must be unqualified, so we have to add to the
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# search path
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CFLAGS="-I/usr/include/nifti $nifti_save_CFLAGS"
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AC_TRY_COMPILE([#include <nifti1_io.h>],[int a;],[
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NIFTI_INCLUDES="-I/usr/include/nifti"
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], [
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# not in the standard search path, try $prefix
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CFLAGS="-I${prefix}/include/nifti $nifti_save_CFLAGS"
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AC_TRY_COMPILE([#include <nifti1_io.h>],[int a;],[
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NIFTI_INCLUDES="-I${prefix}/include/nifti"
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], [
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NIFTI_INCLUDES="no"
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])
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])
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CFLAGS="$nifti_save_CFLAGS"
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fi
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# Now for the libraries
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if test "$NIFTI_LIBS" = ""; then
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nifti_save_LIBS="$LIBS"
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nifti_save_CFLAGS="$CFLAGS"
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LIBS="-lniftiio -lm $nifti_save_LIBS"
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CFLAGS="$NIFTI_INCLUDES $CFLAGS"
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# Try the standard search path first
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AC_TRY_LINK([#include <nifti1_io.h>],[is_nifti_file("")], [
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NIFTI_LIBS="-lniftiio"
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], [
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# libniftiio is not in the standard search path, try $prefix
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LIBS="-L${prefix}/lib $LIBS"
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AC_TRY_LINK([#include <nifti1_io.h>],[is_nifti_file("")], [
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NIFTI_LIBS="-L${prefix}/lib -lniftiio"
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], [
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NIFTI_LIBS=no
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])
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])
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LIBS="$nifti_save_LIBS"
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CFLAGS="$nifti_save_CFLAGS"
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fi
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AC_SUBST(NIFTI_LIBS)
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AC_SUBST(NIFTI_INCLUDES)
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# Print a helpful message
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nifti_libraries_result="$NIFTI_LIBS"
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nifti_includes_result="$NIFTI_INCLUDES"
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if test x"$nifti_libraries_result" = x""; then
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nifti_libraries_result="in default path"
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fi
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if test x"$nifti_includes_result" = x""; then
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nifti_includes_result="in default path"
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fi
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if test "$nifti_libraries_result" = "no"; then
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nifti_libraries_result="(none)"
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fi
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if test "$nifti_includes_result" = "no"; then
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nifti_includes_result="(none)"
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fi
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AC_MSG_RESULT([libraries $nifti_libraries_result, headers $nifti_includes_result])
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# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
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if test "$NIFTI_INCLUDES" != "no" && test "$NIFTI_LIBS" != "no"; then
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AC_DEFINE(HAVE_NIFTI,1,[Define if you have nifti libraries and header files.])
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$1
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else
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NIFTI_INCLUDES=""
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NIFTI_LIBS=""
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$2
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fi
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])dnl
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