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doc: fix compiler warning in libcurl.m4

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Current test for curl_free() may produce warnings with strict compiler
flags or even with default compiler flags with upcoming versions.
These warning could turned into errors by -Werror or similar flags.
Such warnings/errors are avoided by this patch.

Closes #10710
This commit is contained in:
Evgeny Grin (Karlson2k) 2023-03-07 21:37:12 +03:00 committed by Daniel Stenberg
parent 75087c3baa
commit 372b95f77f
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1 changed files with 4 additions and 3 deletions
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7
docs/libcurl/libcurl.m4
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@ -199,9 +199,10 @@ if (x) {;}
_libcurl_save_libs=$LIBS
LIBS="$LIBS $LIBCURL"
AC_CHECK_FUNC(curl_free,,
AC_DEFINE(curl_free,free,
[Define curl_free() as free() if our version of curl lacks curl_free.]))
AC_CHECK_DECL([curl_free],[],
[AC_DEFINE([curl_free],[free],
[Define curl_free() as free() if our version of curl lacks curl_free.])],
[[#include <curl/curl.h>]])
CPPFLAGS=$_libcurl_save_cppflags
LIBS=$_libcurl_save_libs