From: David MacKenzie <djm@djmnet.org>
Date: Mon, 24 Oct 1994 04:39:27 +0000 (+0000)
Subject: add note to AC_TRY_COMPILE about AC_TRY_LINK
X-Git-Tag: fsf-origin~373
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdbfa281904d6e82a7aa2e1cd6b561b42903ce09;p=thirdparty%2Fautoconf.git

add note to AC_TRY_COMPILE about AC_TRY_LINK
---

diff --git a/autoconf.texi b/autoconf.texi
index 321854124..449020c42 100644
--- a/autoconf.texi
+++ b/autoconf.texi
@@ -2651,7 +2651,8 @@ Create a test C program to see whether a function whose body consists of
 If the file compiles successfully, run shell commands
 @var{action-if-found}, otherwise run @var{action-if-not-found}.  This
 macro uses @code{CFLAGS} or @code{CXXFLAGS}, and @code{CPPFLAGS}, when
-compiling.
+compiling.  It does not try to link; use @code{AC_TRY_LINK} if you need
+to do that (@pxref{Examining Libraries}).
 @end defmac
 
 @node Examining Libraries, Run Time, Examining Syntax, Writing Tests
@@ -2659,7 +2660,7 @@ compiling.
 
 To check for a library, a function, or a global variable, Autoconf
 @code{configure} scripts try to compile and link a small program that
-uses it.  This is unlike Metaconfig, which uses @code{nm}
+uses it.  This is unlike Metaconfig, which by default uses @code{nm}
 or @code{ar} on the C library to try to figure out which functions are
 available.  Trying to link with the function is usually a more reliable
 approach because it avoids dealing with the variations in the options
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 321854124..449020c42 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -2651,7 +2651,8 @@ Create a test C program to see whether a function whose body consists of
 If the file compiles successfully, run shell commands
 @var{action-if-found}, otherwise run @var{action-if-not-found}.  This
 macro uses @code{CFLAGS} or @code{CXXFLAGS}, and @code{CPPFLAGS}, when
-compiling.
+compiling.  It does not try to link; use @code{AC_TRY_LINK} if you need
+to do that (@pxref{Examining Libraries}).
 @end defmac
 
 @node Examining Libraries, Run Time, Examining Syntax, Writing Tests
@@ -2659,7 +2660,7 @@ compiling.
 
 To check for a library, a function, or a global variable, Autoconf
 @code{configure} scripts try to compile and link a small program that
-uses it.  This is unlike Metaconfig, which uses @code{nm}
+uses it.  This is unlike Metaconfig, which by default uses @code{nm}
 or @code{ar} on the C library to try to figure out which functions are
 available.  Trying to link with the function is usually a more reliable
 approach because it avoids dealing with the variations in the options