OK, I thought I would try one last update and see if it gets me anywhere. I’ve created a very small test case. This should not build anything, it just tests the path settings. Also I’ve setup the path so there are no spaces. The is the smallest, simplest test case I could come up with.
This makefile will set the path, echo the path, run avr-gcc -v with the full path specified and then try to run it without the full path specified. It should find avr-gcc in the path on the second try, but does not.
makefile
TOOLCHAIN := /Users/justinzaun/Desktop/AVRBuilder.app/Contents/Resources/avrchain
PATH := ${TOOLCHAIN}/bin:${PATH}
export PATH
all:
@echo ${PATH}
@echo --------
"${TOOLCHAIN}/bin/avr-gcc" -v
@echo --------
avr-gcc -v
output
JUSTINs-MacBook-Air:Untitled justinzaun$ make
/Users/justinzaun/Desktop/AVRBuilder.app/Contents/Resources/avrchain/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
--------
"/Users/justinzaun/Desktop/AVRBuilder.app/Contents/Resources/avrchain/bin/avr-gcc" -v
Using built-in specs.
COLLECT_GCC=/Users/justinzaun/Desktop/AVRBuilder.app/Contents/Resources/avrchain/bin/avr-gcc
COLLECT_LTO_WRAPPER=/Users/justinzaun/Desktop/AVRBuilder.app/Contents/Resources/avrchain/bin/../libexec/gcc/avr/4.6.3/lto-wrapper
Target: avr
Configured with: /Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../gcc/configure --prefix=/Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../build/ --exec-prefix=/Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../build/ --datadir=/Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../build/ --target=avr --enable-languages=c,objc,c++ --disable-libssp --disable-lto --disable-nls --disable-libgomp --disable-gdbtk --disable-threads --enable-poison-system-directories
Thread model: single
gcc version 4.6.3 (GCC)
--------
avr-gcc -v
make: avr-gcc: No such file or directory
make: *** [all] Error 1
JUSTINs-MacBook-Air:Untitled justinzaun$
Original Question
I’m trying to set the path from within the makefile. I can’t seem to do this on OSX. Setting the path with PATH := /new/bin/:$(PATH) does not work. See my makefile below.
makefile
PROJECTNAME = Untitled
# Name of target controller
# (e.g. 'at90s8515', see the available avr-gcc mmcu
# options for possible values)
MCU = atmega640
# id to use with programmer
# default: PROGRAMMER_MCU=$(MCU)
# In case the programer used, e.g avrdude, doesn't
# accept the same MCU name as avr-gcc (for example
# for ATmega8s, avr-gcc expects 'atmega8' and
# avrdude requires 'm8')
PROGRAMMER_MCU = $(MCU)
# Source files
# List C/C++/Assembly source files:
# (list all files to compile, e.g. 'a.c b.cpp as.S'):
# Use .cc, .cpp or .C suffix for C++ files, use .S
# (NOT .s !!!) for assembly source code files.
PRJSRC = main.c \
utils.c
# additional includes (e.g. -I/path/to/mydir)
INC =
# libraries to link in (e.g. -lmylib)
LIBS =
# Optimization level,
# use s (size opt), 1, 2, 3 or 0 (off)
OPTLEVEL = s
### You should not have to touch anything below this line ###
PATH := /Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/bin:/usr/bin:/bin:$(PATH)
CPATH := /Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/include
# HEXFORMAT -- format for .hex file output
HEXFORMAT = ihex
# compiler
CFLAGS = -I. $(INC) -g -mmcu=$(MCU) -O$(OPTLEVEL) \
-fpack-struct -fshort-enums \
-funsigned-bitfields -funsigned-char \
-Wall -Wstrict-prototypes \
-Wa,-ahlms=$(firstword \
$(filter %.lst, $(<:.c=.lst)))
# c++ specific flags
CPPFLAGS = -fno-exceptions \
-Wa,-ahlms=$(firstword \
$(filter %.lst, $(<:.cpp=.lst)) \
$(filter %.lst, $(<:.cc=.lst)) \
$(filter %.lst, $(<:.C=.lst)))
# assembler
ASMFLAGS = -I. $(INC) -mmcu=$(MCU) \
-x assembler-with-cpp \
-Wa,-gstabs,-ahlms=$(firstword \
$(<:.S=.lst) $(<.s=.lst))
# linker
LDFLAGS = -Wl,-Map,$(TRG).map -mmcu=$(MCU) \
-lm $(LIBS)
##### executables ####
CC=avr-gcc
OBJCOPY=avr-objcopy
OBJDUMP=avr-objdump
SIZE=avr-size
AVRDUDE=avrdude
REMOVE=rm -f
##### automatic target names ####
TRG=$(PROJECTNAME).out
DUMPTRG=$(PROJECTNAME).s
HEXROMTRG=$(PROJECTNAME).hex
HEXTRG=$(HEXROMTRG) $(PROJECTNAME).ee.hex
# Start by splitting source files by type
# C++
CPPFILES=$(filter %.cpp, $(PRJSRC))
CCFILES=$(filter %.cc, $(PRJSRC))
BIGCFILES=$(filter %.C, $(PRJSRC))
# C
CFILES=$(filter %.c, $(PRJSRC))
# Assembly
ASMFILES=$(filter %.S, $(PRJSRC))
# List all object files we need to create
OBJDEPS=$(CFILES:.c=.o) \
$(CPPFILES:.cpp=.o) \
$(BIGCFILES:.C=.o) \
$(CCFILES:.cc=.o) \
$(ASMFILES:.S=.o)
# Define all lst files.
LST=$(filter %.lst, $(OBJDEPS:.o=.lst))
# All the possible generated assembly
# files (.s files)
GENASMFILES=$(filter %.s, $(OBJDEPS:.o=.s))
.SUFFIXES : .c .cc .cpp .C .o .out .s .S \
.hex .ee.hex .h .hh .hpp
# Make targets:
# all, disasm, stats, hex, writeflash/install, clean
all: $(TRG)
$(TRG): $(OBJDEPS)
$(CC) $(LDFLAGS) -o $(TRG) $(OBJDEPS)
#### Generating assembly ####
# asm from C
%.s: %.c
$(CC) -S $(CFLAGS) $< -o $@
# asm from (hand coded) asm
%.s: %.S
$(CC) -S $(ASMFLAGS) $< > $@
# asm from C++
.cpp.s .cc.s .C.s :
$(CC) -S $(CFLAGS) $(CPPFLAGS) $< -o $@
#### Generating object files ####
# object from C
.c.o:
$(CC) $(CFLAGS) -c $< -o $@
# object from C++ (.cc, .cpp, .C files)
.cc.o .cpp.o .C.o :
$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
# object from asm
.S.o :
$(CC) $(ASMFLAGS) -c $< -o $@
#### Generating hex files ####
# hex files from elf
.out.hex:
$(OBJCOPY) -j .text \
-j .data \
-O $(HEXFORMAT) $< $@
.out.ee.hex:
$(OBJCOPY) -j .eeprom \
--change-section-lma .eeprom=0 \
-O $(HEXFORMAT) $< $@
#### Information ####
info:
@echo PATH:
@echo "$(PATH)"
$(CC) -v
which $(CC)
#### Cleanup ####
clean:
$(REMOVE) $(TRG) $(TRG).map $(DUMPTRG)
$(REMOVE) $(OBJDEPS)
$(REMOVE) $(LST)
$(REMOVE) $(GENASMFILES)
$(REMOVE) $(HEXTRG)
error
JUSTINs-MacBook-Air:Untitled justinzaun$ make
avr-gcc -I. -g -mmcu=atmega640 -Os -fpack-struct -fshort-enums -funsigned-bitfields -funsigned-char -Wall -Wstrict-prototypes -Wa,-ahlms=main.lst -c main.c -o main.o
make: avr-gcc: No such file or directory
make: *** [main.o] Error 1
JUSTINs-MacBook-Air:Untitled justinzaun$
If I change my CC= to include the full path:
CC=/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/bin/avr-gcc
then it finds it, but this doesn’t seem the correct way to do things. For instance its trying to use the system as not the one in the correct path.
update – Just to be sure, I’m adding the output of my ls command too so everyone knows the file exist. Also I’ve added a make info target to the makefile and showing that output as well.
JUSTINs-MacBook-Air:Untitled justinzaun$ ls /Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/bin
ar avr-elfedit avr-man avr-strip objcopy
as avr-g++ avr-nm avrdude objdump
avr-addr2line avr-gcc avr-objcopy c++ ranlib
avr-ar avr-gcc-4.6.3 avr-objdump g++ strip
avr-as avr-gcov avr-ranlib gcc
avr-c++ avr-gprof avr-readelf ld
avr-c++filt avr-ld avr-size ld.bfd
avr-cpp avr-ld.bfd avr-strings nm
JUSTINs-MacBook-Air:Untitled justinzaun$
Output of make info with the \ in my path
JUSTINs-MacBook-Air:Untitled justinzaun$ make info
PATH:
/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
avr-gcc -v
make: avr-gcc: No such file or directory
make: *** [info] Error 1
JUSTINs-MacBook-Air:Untitled justinzaun$
Output of make info with the \ not in my path
JUSTINs-MacBook-Air:Untitled justinzaun$ make info
PATH:
/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR Builder.app/Contents/Resources/avrchain/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
avr-gcc -v
make: avr-gcc: No such file or directory
make: *** [info] Error 1
JUSTINs-MacBook-Air:Untitled justinzaun$
update – When I have my CC set to include the full path as described above, this is the result of make info.
JUSTINs-MacBook-Air:Untitled justinzaun$ make info
PATH:
/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR Builder.app/Contents/Resources/avrchain/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/bin/avr-gcc -v
Using built-in specs.
COLLECT_GCC=/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR Builder.app/Contents/Resources/avrchain/bin/avr-gcc
COLLECT_LTO_WRAPPER=/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR Builder.app/Contents/Resources/avrchain/bin/../libexec/gcc/avr/4.6.3/lto-wrapper
Target: avr
Configured with: /Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../gcc/configure --prefix=/Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../build/ --exec-prefix=/Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../build/ --datadir=/Users/justinzaun/Development/AVRBuilder/Packages/gccobj/../build/ --target=avr --enable-languages=c,objc,c++ --disable-libssp --disable-lto --disable-nls --disable-libgomp --disable-gdbtk --disable-threads --enable-poison-system-directories
Thread model: single
gcc version 4.6.3 (GCC)
which /Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR\ Builder.app/Contents/Resources/avrchain/bin/avr-gcc
/Users/justinzaun/Library/Developer/Xcode/DerivedData/AVR_Builder-gxiykwiwjywvoagykxvmotvncbyd/Build/Products/Debug/AVR Builder.app/Contents/Resources/avrchain/bin/avr-gcc
JUSTINs-MacBook-Air:Untitled justinzaun$
I tried your example on OSX and Linux, and got the same results that you did. I don’t quite understand why that isn’t working (and would love to know), but I do have two workarounds that might help.
export SHELL
Instead of setting the PATH in your Makefile, override the SHELL like this:
Here’s a possible version of that wrapper:
Make will invoke this wrapper to run each line of yoru recipes. This is a little ugly, but it did work for me on OSX.
Outside
Fix the PATH outside of make. Perhaps create a script that you run once per login that fixes the PATH in your shell, or create a small script (I usually call it
mk) that fixes the PATH and then invokes make passing along any parameters. Here’s an exmaple:I know you asked for a Makefile solution, but I thought I would mention this option anyway. It is just my opinion, but things like PATHs tend to be machine specific (and not project specific), and I prefer to keep them separate from source code.