[bug #46225] Programs don't depend on libs in Makefiles

[Thorsten Alteholz]

Follow-up Comment #1, bug#46225 (group gnuastro):

While looking at another bug, I also stumbled upon this issue.

When adding "-lgnuastro" to *_LDADD, this is used as a linker flag and just
passed to ld. When adding a direct path to libgnuastro.la, like
$(top_builddir)/lib/libgnuastro.la, the makefile is able to add a real
dependency. Now changes to libgnuastro.la will result in relinking of the
binaries in bin/*

Unfortunately this requires more CPU cycles as every binary has to be
relinked. But as this bug shows, this is the more expected behaviour of the
build process.

So I propose the commit at

https://git.alteholz.dev/alteholz/gnuastro/-/commit/f03990eafc362024d7248f3cda8a316ec02ab894

as a fix for this bug.

Any comments?



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