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configure: generate a script to run the compiler

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in the CURL_RUN_IFELSE macro, with LD_LIBRARY_PATH set to the value of
the configure invoke, and not the value that might be used later,
intended for the execution of the output the compiler ouputs.

For example when the compiler uses the same library (like libz) that
configure checks for.

Reported-by: Jonas Bülow
Fixes #11114
Closes #11120
This commit is contained in:
Daniel Stenberg 2023-05-16 16:51:14 +02:00
parent 408eb87bb3
commit b78ca50cb3
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2 changed files with 16 additions and 0 deletions
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3
m4/curl-functions.m4
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@ -5866,11 +5866,14 @@ AC_DEFUN([CURL_RUN_IFELSE], [
AC_RUN_IFELSE([AC_LANG_SOURCE([$1])], $2, $3, $4)
;;
*)
oldcc=$CC
old=$LD_LIBRARY_PATH
CC="sh ./run-compiler"
LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
export LD_LIBRARY_PATH
AC_RUN_IFELSE([AC_LANG_SOURCE([$1])], $2, $3, $4)
LD_LIBRARY_PATH=$old # restore
CC=$oldcc
;;
esac
])