Module: ppl/ppl Branch: master Commit: 0d398d757a50f6205581bd43d0c544d1b491b532 URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=0d398d757a50f...

Author: Roberto Bagnara bagnara@cs.unipr.it Date: Sun Aug 2 18:37:14 2009 +0200

Use AC_SEARCH_LIBS to detect whether -lm must be provided to the linker. (Thanks to Joseph Prostko.)

---

configure.ac | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac index d1fb09e..1225d53 100644 --- a/configure.ac +++ b/configure.ac @@ -713,10 +713,11 @@ AC_CHECK_DECLS([fma,fmaf,fmal,rintf,rintl], , , [#include <cmath>]) # Checks for the availability of "fast" integral types. AC_CHECK_TYPES([int_fast16_t,int_fast32_t,int_fast64_t,uint_fast16_t,uint_fast32_t,uint_fast64_t])

-# Must link everything with libm. -extra_libraries="${extra_libraries} -lm" +# The PPL uses <cmath> for sqrt and other functions in several places. +AC_SEARCH_LIBS([sqrt], [m])

-# GMP library. + +# Checks on the GMP library.

AC_CHECK_GMP if test x"$have_gmp" = xno @@ -1483,6 +1484,7 @@ then fi fi

+ AC_SUBST(LIBEXT, [$libext]) AC_SUBST(SHREXT, [$shrext_cmds]) AC_SUBST(extra_includes)