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Check for gmp when checking for mpfr

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There was a report on irc that the gdb check for mpfr failed when only
static libraries are available.  The issue is that mpfr depends on
gmp, but this is not handled explicitly by gdb.

Ideally upstream would switch to pkg-config.  Or even more ideally, we
would incorporate pkg-config into the compiler and not mess with any
of this.

Meanwhile, this changes gdb's configure to add gmp to the link line
when checking for mpfr.

gdb/ChangeLog
2018-09-17  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
	* configure.ac: Use gmp as a library dependency when checking for
	mpfr.
This commit is contained in:
Tom Tromey 2018-09-16 09:52:09 -06:00
parent d35da542a7
commit da658607ed
3 changed files with 8 additions and 2 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2018-09-17 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Use gmp as a library dependency when checking for
mpfr.
2018-09-17 Pedro Alves <palves@redhat.com>
* python/py-inferior.c (find_inferior_object): Delete.

2
gdb/configure vendored
View File

@ -9837,7 +9837,7 @@ fi
rpathdirs=
ltrpathdirs=
names_already_handled=
names_next_round='mpfr '
names_next_round='mpfr gmp'
while test -n "$names_next_round"; do
names_this_round="$names_next_round"
names_next_round=

2
gdb/configure.ac
View File

@ -682,7 +682,7 @@ if test "${with_mpfr}" = no; then
AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
HAVE_LIBMPFR=no
else
AC_LIB_HAVE_LINKFLAGS([mpfr], [], [#include <mpfr.h>],
AC_LIB_HAVE_LINKFLAGS([mpfr], [gmp], [#include <mpfr.h>],
[mpfr_exp_t exp; mpfr_t x;
mpfr_frexp (&exp, x, x, MPFR_RNDN);])
if test "$HAVE_LIBMPFR" != yes; then