gh-120671: Fix PY_CHECK_CC_WARNING() in configure.ac (#120822)

Add missing space in AS_VAR_APPEND() on CFLAGS.
python · Jun 25, 2024 · 2106c9b · 2106c9b
1 parent fd0f814
commit 2106c9b
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diff --git a/Misc/NEWS.d/next/Build/2024-06-21-09-24-03.gh-issue-120671.Z8sBQB.rst b/Misc/NEWS.d/next/Build/2024-06-21-09-24-03.gh-issue-120671.Z8sBQB.rst
@@ -0,0 +1 @@
+Fix failing configure tests due to a missing space when appending to CFLAGS.
diff --git a/configure b/configure
diff --git a/configure.ac b/configure.ac
@@ -2437,7 +2437,7 @@ AC_DEFUN([PY_CHECK_CC_WARNING], [
   AS_VAR_PUSHDEF([py_var], [ac_cv_$1_]m4_normalize($2)[_warning])
   AC_CACHE_CHECK([m4_ifblank([$3], [if we can $1 $CC $2 warning], [$3])], [py_var], [
     AS_VAR_COPY([py_cflags], [CFLAGS])
-    AS_VAR_APPEND([CFLAGS], ["-W$2 -Werror"])
+    AS_VAR_APPEND([CFLAGS], [" -W$2 -Werror"])
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
                       [AS_VAR_SET([py_var], [yes])],
                       [AS_VAR_SET([py_var], [no])])