| From: Tom Hughes <tomhughes@chromium.org> |
| |
| Fix cross-compilation by removing gsl header/library check (these are enforced |
| through ebuild DEPENDS) and using AC_C_BIGENDIAN instead of the non-standard |
| AC_C_ENDIAN macro which tries to execute code. |
| |
| --- a/configure.ac |
| +++ b/configure.ac |
| @@ -108,48 +108,7 @@ |
| AC_SUBST(DIEHARDER_LIBS) |
| AC_SUBST(ACLOCAL_AMFLAGS) |
| |
| -#================================================================== |
| -# Checks for libraries, and headers. Test for dependency libraries |
| -# FIRST in reverse order that you need -lwhatever to appear on |
| -# compile line as it accumulates libraries to build e.g. |
| -# -lgsl -lgslcblas |
| -# for the SECOND test, required (in that order) to succeed. |
| -#================================================================== |
| -AC_CHECK_HEADER([gsl/gsl_sf_gamma.h],,[AC_MSG_ERROR([Couldn't find GSL headers. Please install the gsl-devel package.])]) |
| -AC_CHECK_LIB([gslcblas], [main],,[AC_MSG_ERROR([Couldn't find libgsl. Please install the gsl package.])]) |
| -AC_CHECK_LIB([gsl],[gsl_sf_gamma]) |
| - |
| - |
| -#================================================================== |
| -# Check if we're a little-endian or a big-endian system, needed by |
| -# brg_endian.h in the build of rng_threefish. This is a very |
| -# certain test, and therefore is checked FIRST in this header file. |
| -#================================================================== |
| -AC_DEFUN([AC_C_ENDIAN], |
| -[AC_CACHE_CHECK(for endianness, ac_cv_c_endian, |
| -[ |
| - AC_RUN_IFELSE( |
| - [AC_LANG_PROGRAM([], [dnl |
| - long val = 1; |
| - char *c = (char *) &val; |
| - exit(*c == 1); |
| - ]) |
| - ],[ |
| - ac_cv_c_endian=big |
| - ],[ |
| - ac_cv_c_endian=little |
| - ]) |
| -]) |
| -if test $ac_cv_c_endian = big; then |
| - AC_SUBST(LITTLE_ENDIAN,0) |
| -fi |
| -if test $ac_cv_c_endian = little; then |
| - AC_SUBST(LITTLE_ENDIAN,1) |
| -fi |
| -]) |
| - |
| -AC_C_ENDIAN |
| - |
| +AC_C_BIGENDIAN([AC_SUBST(LITTLE_ENDIAN,0)],[AC_SUBST(LITTLE_ENDIAN,1)]) |
| |
| #================================================================== |
| # Checks for typedefs, structures, and compiler characteristics. |
