On 03/02/18 00:21, Antonio Scuri wrote:
Hi,
I don't know why make is not behaving as you expect. I never used it in
that way.
Regarding bin2c, I didn't understand what you are trying to change.
bin2c.lua is included in IUP source code.
Best,
Scuri
[...]
G'day,
[As an aside: In response to my IUP "Footnote 2": I see that the IUP
Subversion repository seems to be stable, and now is at r4693; a week
ago it was at r4682.]
The build variable BIN2C breaks down into three parts:
1. Finding a suitable path to a Lua interpreter;
2. Invoking that interpreter via its name; and
3. Using the script "bin2c.lua", as provided by the sources.
My problem is with a snippet of code that uses the bin2c.lua script
to convert some binary data into a C header file that encodes the
bytes of the binary. The file extension is 'lh'; the tecmake.mak
rule that generates commands for this conversion is the static
pattern rule:
--- (cut here) ---
$(LHDIR)/%.lh: $(OBJROOT)/%.lo
@echo ''; echo Tecmake: generating $(<F)
$(ECHO)$(BIN2C) $< > $@
--- (end of snippet) ---
Tracking back, the definition of BIN2C happens in the middle of
a definition block "ifdef USE_LUA ... endif". The code in that
area of tecmake.mak (about line 1036-1046) is:
--- (cut here) ---
LUA_INC ?= LUA/include
INCLUDES += $(LUA_INC)
LUA_BIN ?= $(LUA)/bin/$(TEC_UNAME)
ifdef USE_BIN2C_LUA
BIN2C := $(LUA_BIN)/lua$(LUA_SFX) $(BIN2C_PATH)bin2c.lua
else
BIN2C := $(LUA_BIN)bin2c$(LUA_SFX)
endif
LUAC := $(LUA_BIN)luac$(LUA_SFX)
LUABIN := $(LUA_BIN)lua($LUA_SFX)
--- (end of snippet) ---
The problems I have comes from trying to invoke Lua, where my code
perhaps does not line up with the build system expectations:
1. I don't include building Lua in the "tecgraf" build tree, alongside
IM/CD/IUP; instead, I simply want to invoke the OS-installed
package for Lua 5.1.5;
2. On Linux Mint (derived from Ubuntu), typing simply "lua", or,
equally simply, "lua5.1", invokes Lua; tecmake.mak sets LUA_SFX to
"5.1", so the command to invoke Lua is "lua5.1"; but
3. On Gentoo Linux, things are set up differently, and, while there
is a Lua interpreter at /usr/bin/lua, there is no /usr/bin/lua5.1.
Therefore, on Gentoo, tecmake.mak's composes the wrong command to
invoke Lua, and therefore the build fails.
In addition, I'm also a little confused about similarities or
differences between defining symbols to the shell, versus defining
them on the command line, e.g. (taken from the IM/CD/IUP build
guide, Ubuntu GNU/Linux build section):
export LUA_SUFFIX=
export LUA_INC=/usr/include/lua5.1
versus (my own code, a trial that did not work):
cd /base/im/src
make LUA_SUFFIX= LUA_INC=/usr/include/lua5.1
(When focussing on CD, I added a symlink in /usr/bin so that both
/usr/bin/lua and /usr/bin/lua5.1 were valid, but I don't want to do
this in all installations, as it cuts across the package manager's
boundaries.)
thanks in advance for any assistance,
s-b etc
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