It was added back in
5147d5c69f
for unclear reasons (and the lack of bug number doesn't help), and hasn't been
used, as far as I can see in the gecko-dev history, other than in bug 206029,
which is the only use currently in the tree.
Bug 206029 was working around the Flash player installer modifying Firefox's
prefs file and not dealing with it properly or something depending on the line
endings. 11 years later, all prefs files except channel-prefs.js are in
omni.ja, so obviously, bug 206029 doesn't actually apply anymore.
So, let's simplify it all and get rid of this.
The flags added in toolkit/locales/Makefile.in turn out not to be actually
used, so just remove that.
The remaining uses of XULPPFLAGS are to set debug flags depending on whether
MOZ_DEBUG is set or not. Just set a dedicated variable with the right value
from configure.
This commit is us getting out of our own way. We were specifying
-classpath twice, once in $(JAVAC) and once in java-build.mk. Only
the latter of these is active. This a problem for ANDROID_EXTRA_JARS
-- those JARs should be on the classpath and input to $(DX) -- and
JARs that should be on the classpath but *not* input to $(DX). This
commit removes the global flags to $(JAVAC) and adds
JAVA_{BOOT}CLASSPATH_JARS. This required some hijinkery moving
wildcards to moz.build files, but everything seems to work.
As well as clarifying some parts of the build, part 2 uses this work
to modify the classpath.
Use |nm -A| instead of |nm -l| to avoid depending on imprecise debug
information in optimized builds. (And to get the 100x faster
performance.)
Fix a problem with the filename regex so we can also detect symbol
references in from source files with a hyphen in their name.
When bad allocation references are detected, display results from |nm -l|
so we still get the useful line number information.
It was necessary to allow warnings here I introduced ALLOW_COMPILER_WARNINGS in
bug 1198334, but something must have changed subsequently because it no longer
is necessary.
Its only purpose is to disable PGO. Where that was not already explicitly done,
or irrelevant (because the directory only contains python), I disabled it in
moz.build.
The patch removes 455 occurrences of FAIL_ON_WARNINGS from moz.build files, and
adds 78 instances of ALLOW_COMPILER_WARNINGS. About half of those 78 are in
code we control and which should be removable with a little effort.
This moves a little bit more of mobile/android/base/Makefile.in into
moz.build, and gets closer to moving that aapt invocation into
java-build.mk.
There are no other extra package consumers in the tree. (There should
be a new one shortly: b2gdroid.)
This paves the way for defining additional Android packages in
moz.build, which is a step toward moving the special
mobile/android/base/Makefile.in aapt invocations into the generic
java-build.mk framework.
The new variables are both passthru variables for now: in the future,
we'll roll them into some aggregate Android APK definition.
It's worth noting that references to the variables in Makefile.in
files are only defined after including rules.mk (and thereby
backend.mk). This only required a few changes in the tree but it
confused me for some time.
Now that we have moz.build, we can be guaranteed that any flags we add
in moz.build will be added after everything else has been setup. So any
uses of MODULE_OPTIMIZE_FLAGS can be moved to moz.build's
CFLAGS/CXXFLAGS without any unusual repercussions. We do have to verify
that MOZ_OPTIMIZE is in effect, though.
