From: Joel Brobecker <brobecker@adacore.com>
Date: Sun, 15 Nov 2020 08:08:40 +0000 (-0500)
Subject: gdb: Make GMP a required dependency for building GDB
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1b4ac058f7daeb9bac9ab0e63a7e73535208dfef;p=binutils-gdb.git

gdb: Make GMP a required dependency for building GDB

This commit modifies gdb's configure script to trigger an error
if we cannot find a usable libgmp.

For the record, making this a requirement was discussed in March 2018:
https://sourceware.org/pipermail/gdb-patches/2018-March/147373.html

gdb/ChangeLog:

        * configure.ac: Generate an error if a usable GMP library
        could not be found.
        * configure: Regenerate.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ee1dea309f4..8de390a7c72 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2020-11-15  Joel Brobecker  <brobecker@adacore.com>
+
+	* configure.ac: Generate an error if a usable GMP library
+	could not be found.
+	* configure: Regenerate.
+
 2020-11-15  Joel Brobecker  <brobecker@adacore.com>
 
 	* configure.ac: Add support for --with-libgmp-prefix.
diff --git a/gdb/configure b/gdb/configure
index 2bf08569bf5..a3e73b431c4 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -10469,6 +10469,9 @@ $as_echo "$LIBGMP" >&6; }
 
 
 
+if test "$HAVE_LIBGMP" != yes; then
+  as_fn_error $? "GMP is missing or unusable" "$LINENO" 5
+fi
 
 
 # Check whether --with-mpfr was given.
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 0264a4f2c9c..32f25d96551 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -687,6 +687,9 @@ fi
 AC_LIB_HAVE_LINKFLAGS([gmp], [], [#include <gmp.h>],
                       [mpz_t n;
                        mpz_init (n);])
+if test "$HAVE_LIBGMP" != yes; then
+  AC_MSG_ERROR([GMP is missing or unusable])
+fi
 
 AC_ARG_WITH(mpfr,
   AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),