From: Daniel Schürmann <daschuer@mixxx.org>
Date: Mon, 2 May 2022 18:58:19 +0000 (+0200)
Subject: ICU-22010 Add early check for AX_CHECK_COMPILE_FLAG
X-Git-Tag: cldr/2022-08-01~12
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9f358ccb2472866a849aa4f393ef4528448c3e9d;p=icu

ICU-22010 Add early check for AX_CHECK_COMPILE_FLAG

This helps to avoid missleading error message:

```
./source/configure: line 7981: syntax error near unexpected token 'newline'
./source/configure: line 7981: 'AX_CHECK_COMPILE_FLAG('
```
---

diff --git a/icu4c/source/configure.ac b/icu4c/source/configure.ac
index ba97cbc286a..6a4031284a4 100644
--- a/icu4c/source/configure.ac
+++ b/icu4c/source/configure.ac
@@ -199,6 +199,8 @@ fi
 #AC_CHECK_PROG(AUTOCONF, autoconf, autoconf, true)
 #AC_CHECK_PROG(STRIP, strip, strip, true)
 
+m4_ifndef([AX_CHECK_COMPILE_FLAG], [AC_MSG_ERROR(['autoconf-archive' is missing])])
+
 # TODO(ICU-20301): Remove fallback to Python 2.
 AC_CHECK_PROGS(PYTHON, python3 "py -3" python "py")
 AC_SUBST(PYTHON)