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diff -pU3 a/configure b/configure
--- a/configure 2017-09-14 21:09:29.000000000 +0900
+++ b/configure 2017-09-15 05:56:46.000000000 +0900
@@ -10366,6 +10366,7 @@ fi
ac_res=$ac_cv_search___gmpz_init
if test "$ac_res" != no; then :
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+ $as_echo "#define HAVE_LIBGMP 1" >>confdefs.h
fi
@@ -10435,6 +10436,7 @@ fi
ac_res=$ac_cv_search_malloc_conf
if test "$ac_res" != no; then :
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+ $as_echo "#define HAVE_LIBJEMALLOC 1" >>confdefs.h
else
with_jemalloc=no
diff -pU3 a/configure.in b/configure.in
--- a/configure.in 2017-08-09 19:28:56.000000000 +0900
+++ b/configure.in 2017-09-15 07:18:25.000000000 +0900
@@ -1337,13 +1337,15 @@ AC_ARG_WITH([gmp],
AS_IF([test "x$with_gmp" != xno],
[AC_CHECK_HEADERS(gmp.h)
AS_IF([test "x$ac_cv_header_gmp_h" != xno],
- AC_SEARCH_LIBS([__gmpz_init], [gmp]))])
+ AC_SEARCH_LIBS([__gmpz_init], [gmp],
+ [AC_DEFINE(HAVE_LIBGMP, 1)]))])
AC_ARG_WITH([jemalloc],
[AS_HELP_STRING([--with-jemalloc],[use jemalloc allocator])],
[with_jemalloc=$withval], [with_jemalloc=no])
AS_IF([test "x$with_jemalloc" = xyes],[
- AC_SEARCH_LIBS([malloc_conf], [jemalloc], [], [with_jemalloc=no])
+ AC_SEARCH_LIBS([malloc_conf], [jemalloc],
+ [AC_DEFINE(HAVE_LIBJEMALLOC, 1)], [with_jemalloc=no])
AC_CHECK_HEADER(jemalloc/jemalloc.h, [
AC_DEFINE(RUBY_ALTERNATIVE_MALLOC_HEADER, [<jemalloc/jemalloc.h>])
])
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