postgresql/Makefile
Daniel Gustafsson c330b75d9c Dynamically find correct installation docs in Makefile.
The base Makefile will output help to the user when invoking make in
an unconfigured tree, the help was however always referring to a file
which may not be present as it's only in tarballs.  Dynamically check
for the presence of the INSTALL file and fall back on README.git when
it's not available (which is the case of Git checkouts).

Reported-by: Tim McNamara <tim@mcnamara.nz>
Reviewed-by: Magnus Hagander <magnus@hagander.net>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/730dae39-abaa-4140-893b-95d732fed003@www.fastmail.com
2022-01-19 14:48:25 +01:00

48 lines
1.8 KiB
Makefile

# The PostgreSQL make files exploit features of GNU make that other
# makes do not have. Because it is a common mistake for users to try
# to build Postgres with a different make, we have this make file
# that, as a service, will look for a GNU make and invoke it, or show
# an error message if none could be found.
# If the user were using GNU make now, this file would not get used
# because GNU make uses a make file named "GNUmakefile" in preference
# to "Makefile" if it exists. PostgreSQL is shipped with a
# "GNUmakefile". If the user hasn't run the configure script yet, the
# GNUmakefile won't exist yet, so we catch that case as well.
# AIX make defaults to building *every* target of the first rule. Start with
# a single-target, empty rule to make the other targets non-default.
all:
all check install installdirs installcheck installcheck-parallel uninstall clean distclean maintainer-clean dist distcheck world check-world install-world installcheck-world:
@if [ ! -f GNUmakefile ] ; then \
if [ -f INSTALL ] ; then \
INSTRUCTIONS="INSTALL"; \
else \
INSTRUCTIONS="README.git"; \
fi; \
echo "You need to run the 'configure' program first. See the file"; \
echo "'$$INSTRUCTIONS' for installation instructions, or visit: " ; \
echo "<https://www.postgresql.org/docs/devel/installation.html>" ; \
false ; \
fi
@IFS=':' ; \
for dir in $$PATH; do \
for prog in gmake gnumake make; do \
if [ -f $$dir/$$prog ] && ( $$dir/$$prog -f /dev/null --version 2>/dev/null | grep GNU >/dev/null 2>&1 ) ; then \
GMAKE=$$dir/$$prog; \
break 2; \
fi; \
done; \
done; \
\
if [ x"$${GMAKE+set}" = xset ]; then \
echo "Using GNU make found at $${GMAKE}"; \
unset MAKELEVEL; \
$${GMAKE} $@ ; \
else \
echo "You must use GNU make to build PostgreSQL." ; \
false; \
fi