X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/0a34949459c8ec5f79599a458704b7b11cdbb248..7b6f3bd52dc20f14fe0e73859e4d63e5668bc97c:/src/OS/Makefile-Linux diff --git a/src/OS/Makefile-Linux b/src/OS/Makefile-Linux index 4fe2436a6..990f884e9 100644 --- a/src/OS/Makefile-Linux +++ b/src/OS/Makefile-Linux @@ -1,7 +1,9 @@ -# $Cambridge: exim/src/OS/Makefile-Linux,v 1.4 2008/08/11 15:30:02 fanf2 Exp $ - # Exim: OS-specific make file for Linux. This is for modern Linuxes, # which use libc6. +# +# For Linux, we assume GNU Make; at time of writing, the only extension +# used is ?= which is actually portable to other maintained Make variants, +# just is not POSIX. HAVE_ICONV=yes @@ -10,8 +12,9 @@ CHOWN_COMMAND=look_for_it CHGRP_COMMAND=look_for_it CHMOD_COMMAND=look_for_it -CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -CFLAGS_DYNAMIC=-shared -rdynamic +# Preserve CFLAGS and CFLAGS_DYNAMIC from the caller/environment +CFLAGS ?= -O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE +CFLAGS_DYNAMIC ?= -shared -rdynamic DBMLIB = -ldb USE_DB = yes