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A more helpful error when --without-jemalloc is impossible

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When jemalloc is the system allocator (on FreeBSD and NetBSD), trying
to build --without-jemalloc caused an obscure compiler error. Instead,
complain at configure time that --without-jemalloc cannot work. (It
needs to remain an error because it is vexing when configure quietly
ignores an explicit direction.)

(cherry picked from commit f0e79458beebfb7f247f38bdd9991b6998f97040)
This commit is contained in:
Tony Finch 2022-09-21 17:44:48 +01:00
parent 6173e62147
commit 9ec7f4399f
1 changed files with 4 additions and 1 deletions
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5
configure.ac
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@ -1354,7 +1354,10 @@ AS_CASE([$with_jemalloc],
with_jemalloc=no])])
AS_IF([test "$with_jemalloc" = "no"],
[AC_CHECK_FUNCS([malloc_size malloc_usable_size])])
[AS_CASE([$host],
[*-freebsd*],[AC_MSG_ERROR([You cannot compile without jemalloc; jemalloc is the system allocator on FreeBSD])],
[*-netbsd*],[AC_MSG_ERROR([You cannot compile without jemalloc; jemalloc is the system allocator on NetBSD])])
AC_CHECK_FUNCS([malloc_size malloc_usable_size])])
AM_CONDITIONAL([HAVE_JEMALLOC], [test "$with_jemalloc" = "yes"])