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authorJoseph Myers <joseph@codesourcery.com>2018-10-29 15:28:05 +0000
committerJoseph Myers <joseph@codesourcery.com>2018-10-29 15:28:05 +0000
commitc6982f7efc1c70fe2d6160a87ee44d871ac85ab0 (patch)
tree1b1badfdc9453d1d32ca0bd207501253f7de92d5 /configure.ac
parenthurd: Fix race between calling RPC and handling a signal (diff)
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Patch to require Python 3.4 or later to build glibc.
This patch makes Python 3.4 or later a required tool for building glibc, so allowing changes of awk, perl etc. code used in the build and test to Python code without any such changes needing makefile conditionals or to handle older Python versions. This patch makes the configure test for Python check the version and give an error if Python is missing or too old, and removes makefile conditionals that are no longer needed. It does not itself convert any code from another language to Python, and does not remove any compatibility with older Python versions from existing scripts. Tested for x86_64. * configure.ac (PYTHON_PROG): Use AC_CHECK_PROG_VER. Set critic_missing for versions before 3.4. * configure: Regenerated. * manual/install.texi (Tools for Compilation): Document requirement for Python to build glibc. * INSTALL: Regenerated. * Rules [PYTHON]: Make code unconditional. * benchtests/Makefile [PYTHON]: Likewise. * conform/Makefile [PYTHON]: Likewise. * manual/Makefile [PYTHON]: Likewise. * math/Makefile [PYTHON]: Likewise.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac18
1 files changed, 6 insertions, 12 deletions
diff --git a/configure.ac b/configure.ac
index e983fd8faa..6cc10ede98 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1050,18 +1050,12 @@ else
fi
# Check for python3 if available, or else python.
-AC_CHECK_PROGS(PYTHON_PROG, python3 python,no)
-case "x$PYTHON_PROG" in
-xno|x|x:) PYTHON_PROG=no ;;
-*) ;;
-esac
-
-if test "x$PYTHON_PROG" = xno; then
- aux_missing="$aux_missing python"
-else
- PYTHON="$PYTHON_PROG -B"
- AC_SUBST(PYTHON)
-fi
+AC_CHECK_PROG_VER(PYTHON_PROG, python3 python, --version,
+ [Python \([0-9][0-9.]*\)],
+ [3.[4-9]*|3.[1-9][0-9]*|[4-9].*|[1-9][0-9]*],
+ critic_missing="$critic_missing python")
+PYTHON="$PYTHON_PROG -B"
+AC_SUBST(PYTHON)
test -n "$critic_missing" && AC_MSG_ERROR([
*** These critical programs are missing or too old:$critic_missing