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comparison configure.ac @ 15875:c18692212b90

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configure.ac: Simplify test for math library. configure.ac: AC_CHECK_LIB test for math lib no longer requires explicitly including libc as it did on 1/20/1999 when this part of configure.ac was written.
author Rik <rik@octave.org>
date Wed, 02 Jan 2013 17:15:57 -0800
parents 11d5a7276b6d
children 84b38d6442e6
comparison
equal deleted inserted replaced
15874:11d5a7276b6d 15875:c18692212b90
514 AC_ARG_VAR([BUILD_LDFLAGS], 514 AC_ARG_VAR([BUILD_LDFLAGS],
515 [build system C++ compiler link flags (used if cross compiling)]) 515 [build system C++ compiler link flags (used if cross compiling)])
516 AC_ARG_VAR([BUILD_EXEEXT], 516 AC_ARG_VAR([BUILD_EXEEXT],
517 [build system executable extension (used if cross compiling)]) 517 [build system executable extension (used if cross compiling)])
518 518
519 dnl This is bogus. We shouldn't have to explicitly add libc too! 519
520 ### Look for math library. If found, this will add -lm to LIBS.
521
520 dnl Keep this check before the check for the Fortran compiler, 522 dnl Keep this check before the check for the Fortran compiler,
521 dnl in case -lm is needed to compile Fortran programs. 523 dnl in case -lm is needed to compile Fortran programs.
522 524 AC_CHECK_LIB(m, sin)
523 ### Look for math library. If found, this will add -lm to LIBS.
524
525 case $host_os in
526 linux*)
527 AC_CHECK_LIB(m, sin, , , -lc)
528 ;;
529 *)
530 AC_CHECK_LIB(m, sin)
531 ;;
532 esac
533 525
534 ### Determine the Fortran compiler and how to invoke it 526 ### Determine the Fortran compiler and how to invoke it
535 527
536 ## Default FFLAGS is -O. 528 ## Default FFLAGS is -O.
537 if test x"$FFLAGS" = x""; then 529 if test x"$FFLAGS" = x""; then