re PR c/2347 (gcc does not accept "-l m" as POSIX permits (wants -lm))

	* gcc.c (process_command): Allow -l lib in addition to -llib
	for POSIX compliance. This fixes PR c/2347.

	* invoke.texi: Update section on Link Options accordingly.

From-SVN: r41655

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 08224fc..44244dc 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2001-04-28  Jens Schweikhardt <schweikh@schweikhardt.net>
+
+       * gcc.c (process_command): Allow -l lib in addition to -llib
+       for POSIX compliance. This fixes PR c/2347.
+
+       * invoke.texi: Update section on Link Options accordingly.
+
 2001-04-27  Zack Weinberg  <zackw@stanford.edu>
 
        * function.c (purge_addressof_1): Remove the duplicate

diff --git a/gcc/gcc.c b/gcc/gcc.c
index b265526..9c137fa 100644 (file)
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -3287,6 +3287,14 @@ process_command (argc, argv)
          n_infiles++;
          i++;
        }
+      else if (strcmp (argv[i], "-l") == 0)
+       {
+         if (i + 1 == argc)
+           fatal ("argument to `-l' is missing");
+
+         n_infiles++;
+         i++;
+       }
       else if (strncmp (argv[i], "-l", 2) == 0)
        n_infiles++;
       else if (strcmp (argv[i], "-save-temps") == 0)
@@ -3728,6 +3736,12 @@ process_command (argc, argv)
          infiles[n_infiles].language = "*";
          infiles[n_infiles++].name = argv[++i];
        }
+      else if (strcmp (argv[i], "-l") == 0)
+       { /* POSIX allows separation of -l and the lib arg;
+            canonicalize by concatenating -l with its arg */
+         infiles[n_infiles].language = "*";
+         infiles[n_infiles++].name = concat ("-l", argv[++i], NULL_PTR);
+       }
       else if (strncmp (argv[i], "-l", 2) == 0)
        {
          infiles[n_infiles].language = "*";

diff --git a/gcc/invoke.texi b/gcc/invoke.texi
index c096b79..9ccbea1 100644 (file)
--- a/gcc/invoke.texi
+++ b/gcc/invoke.texi
@@ -3721,10 +3721,13 @@ Options}.
 
 @cindex Libraries
 @item -l@var{library}
-Search the library named @var{library} when linking.
+@itemx -l @var{library}
+Search the library named @var{library} when linking.  (The second
+alternative with the library as a separate argument is only for
+POSIX compliance and is not recommended.)
 
 It makes a difference where in the command you write this option; the
-linker searches processes libraries and object files in the order they
+linker searches and processes libraries and object files in the order they
 are specified.  Thus, @samp{foo.o -lz bar.o} searches library @samp{z}
 after file @file{foo.o} but before @file{bar.o}.  If @file{bar.o} refers
 to functions in @samp{z}, those functions may not be loaded.