configure: use well-known file name conftest.c

... for configuration checks.  Compiler wrappers check for this name
in order to skip any instrumentation of the build that is intended
for regular source files only.

diff --git a/configure b/configure
index a0f62d7b67f4d6df9287fd5559ea9292650e90d1..729a9d4c7a07a63739d5d7fb5490ac24eac3b8b9 100755 (executable)
--- a/configure
+++ b/configure
@@ -33,13 +33,13 @@ test_code () {
     echo "int main(int argc, char **argv) {"
     echo "$code"
     echo "return 0; }"
-  ) > docheck.c
+  ) > conftest.c
 
-  echo "docheck.c:" >> config.log
-  cat docheck.c >> config.log
-  echo $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags \
+  echo "conftest.c:" >> config.log
+  cat conftest.c >> config.log
+  echo $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o conftest conftest.c $ldflags \
     $MYLDFLAGS >> config.log
-  $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags \
+  $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o conftest conftest.c $ldflags \
     $MYLDFLAGS >> config.log 2>&1
 
   if [ $? -eq 0 ]
@@ -50,7 +50,7 @@ test_code () {
     echo "No"
     result=1
   fi
-  rm -f docheck.c docheck
+  rm -f conftest.c conftest
   echo >> config.log
   return $result
 }