219 lines
6.1 KiB
Makefile
219 lines
6.1 KiB
Makefile
# Nuke built-in rules and variables.
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MAKEFLAGS += -rR
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.SUFFIXES:
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# Target architecture.
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ARCH := x86_64
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# Auto-detect cross compiler from toolchain/local/.
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TOOLCHAIN_PREFIX := $(shell cd .. && pwd)/toolchain/local/bin/x86_64-elf-
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ifneq ($(wildcard $(TOOLCHAIN_PREFIX)gcc),)
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CXX := $(TOOLCHAIN_PREFIX)g++
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CC := $(TOOLCHAIN_PREFIX)gcc
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else
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CXX := g++
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CC := gcc
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endif
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# Compiler flags: freestanding, no stdlib, kernel-mode compatible.
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override CXXFLAGS := \
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-std=gnu++20 \
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-g -O2 -pipe \
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-Wall \
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-Wextra \
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-nostdinc \
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-ffreestanding \
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-fno-stack-protector \
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-fno-stack-check \
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-fno-PIC \
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-fno-rtti \
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-fno-exceptions \
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-ffunction-sections \
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-fdata-sections \
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-m64 \
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-march=x86-64 \
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-mno-80387 \
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-mno-mmx \
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-mno-sse \
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-mno-sse2 \
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-mno-red-zone \
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-mcmodel=small \
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-I include \
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-isystem ../kernel/freestnd-c-hdrs/x86_64/include \
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-isystem ../kernel/freestnd-cxx-hdrs/x86_64/include
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# Linker flags: freestanding static ELF.
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override LDFLAGS := \
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-nostdlib \
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-static \
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-Wl,--build-id=none \
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-Wl,--gc-sections \
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-Wl,-m,elf_x86_64 \
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-z max-page-size=0x1000 \
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-T link.ld
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# Output directory.
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BINDIR := bin
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# Discover all programs (each subdirectory under src/ is a program).
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PROGRAMS := $(notdir $(wildcard src/*))
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# Programs with custom Makefiles (built separately).
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CUSTOM_BUILDS := doom fetch wiki wikipedia weather imageviewer fontpreview spreadsheet pdfviewer disks devexplorer installer desktop
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SYSTEM_PROGRAMS := $(filter-out $(CUSTOM_BUILDS),$(PROGRAMS))
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# Build targets: system programs go to bin/os/, apps go to bin/apps/<name>/.
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TARGETS := $(addprefix $(BINDIR)/os/,$(addsuffix .elf,$(SYSTEM_PROGRAMS)))
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# Man pages source directory.
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MANDIR := man
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MANSRC := $(wildcard $(MANDIR)/*.*)
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MANDST := $(patsubst $(MANDIR)/%,$(BINDIR)/man/%,$(MANSRC))
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# Web content source directory.
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WWWDIR := www
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WWWSRC := $(wildcard $(WWWDIR)/*.*)
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WWWDST := $(patsubst $(WWWDIR)/%,$(BINDIR)/www/%,$(WWWSRC))
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# CA certificate bundle.
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CA_CERTS := $(BINDIR)/etc/ca-certificates.crt
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# Home directory placeholder.
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HOMEKEEP := $(BINDIR)/home/.keep
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.PHONY: all clean doom fetch wiki wikipedia weather imageviewer fontpreview spreadsheet pdfviewer disks devexplorer installer desktop icons fonts bearssl libc tls libjpeg install-apps
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all: bearssl libc libjpeg tls $(TARGETS) fetch wiki wikipedia weather imageviewer fontpreview spreadsheet pdfviewer disks devexplorer installer doom desktop icons fonts install-apps $(MANDST) $(WWWDST) $(CA_CERTS) $(HOMEKEEP)
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# Build BearSSL static library (cross-compiled for freestanding x86_64).
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BEARSSL_INCLUDES := -isystem $(shell cd .. && pwd)/kernel/freestnd-c-hdrs/x86_64/include -isystem $(abspath include/libc)
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lib/bearssl/build/libbearssl.a:
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$(MAKE) -C lib/bearssl CONF=MontaukOS \
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BEARSSL_CC="$(CC)" \
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BEARSSL_AR="$(TOOLCHAIN_PREFIX)ar" \
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BEARSSL_INCLUDES="$(BEARSSL_INCLUDES)"
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bearssl: lib/bearssl/build/libbearssl.a
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# Build shared libc static library.
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libc:
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$(MAKE) -C lib/libc
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# Build shared TLS helper library.
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tls: bearssl libc
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$(MAKE) -C lib/tls
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# Build fetch via its own Makefile (depends on bearssl, libc, and tls).
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fetch: bearssl libc tls
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$(MAKE) -C src/fetch
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# Build wiki via its own Makefile (depends on bearssl, libc, and tls).
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wiki: bearssl libc tls
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$(MAKE) -C src/wiki
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# Build wikipedia standalone GUI client (depends on bearssl, libc, and tls).
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wikipedia: bearssl libc tls
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$(MAKE) -C src/wikipedia
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# Build weather standalone GUI client (depends on bearssl, libc, and tls).
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weather: bearssl libc tls
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$(MAKE) -C src/weather
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# Build libjpeg static library (JPEG decoding via stb_image).
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libjpeg: libc
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$(MAKE) -C lib/libjpeg
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# Build imageviewer standalone GUI client (depends on libc and libjpeg).
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imageviewer: libc libjpeg
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$(MAKE) -C src/imageviewer
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# Build fontpreview standalone GUI client (no library deps).
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fontpreview:
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$(MAKE) -C src/fontpreview
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# Build spreadsheet standalone GUI client (depends on libc).
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spreadsheet: libc
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$(MAKE) -C src/spreadsheet
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# Build PDF viewer standalone GUI client (depends on libc).
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pdfviewer: libc
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$(MAKE) -C src/pdfviewer
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# Build disks standalone GUI tool (depends on libc).
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disks: libc
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$(MAKE) -C src/disks
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# Build devexplorer standalone GUI tool (depends on libc).
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devexplorer: libc
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$(MAKE) -C src/devexplorer
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# Build installer standalone GUI tool (depends on libc).
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installer: libc
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$(MAKE) -C src/installer
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# Build desktop via its own Makefile (depends on libc and libjpeg for wallpaper).
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desktop: libc libjpeg
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$(MAKE) -C src/desktop
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# Copy SVG icons for the desktop into bin/icons/.
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icons:
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../scripts/copy_icons.sh
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# Copy TTF fonts for the desktop into bin/fonts/.
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fonts:
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../scripts/copy_fonts.sh
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# Build doom via its own Makefile.
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doom:
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$(MAKE) -C src/doom
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# Install app bundles (manifests, icons, data files) into bin/apps/<name>/.
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install-apps: doom spreadsheet weather wikipedia imageviewer fontpreview pdfviewer disks devexplorer installer
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../scripts/install_apps.sh
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# Copy man pages into bin/man/ so mkramdisk.sh picks them up.
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$(BINDIR)/man/%: $(MANDIR)/%
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mkdir -p $(BINDIR)/man
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cp $< $@
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# Copy web content into bin/www/ so mkramdisk.sh picks them up.
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$(BINDIR)/www/%: $(WWWDIR)/%
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mkdir -p $(BINDIR)/www
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cp $< $@
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# Copy CA certificate bundle into bin/etc/.
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$(CA_CERTS): data/ca-certificates.crt
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mkdir -p $(BINDIR)/etc
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cp $< $@
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# Create empty home directory with a keep file.
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$(HOMEKEEP):
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mkdir -p $(BINDIR)/home
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touch $@
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# Build each system program from its source files.
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$(BINDIR)/os/%.elf: src/%/main.cpp link.ld GNUmakefile
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mkdir -p $(BINDIR)/os obj/$*
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$(CXX) $(CXXFLAGS) -c src/$*/main.cpp -o obj/$*/main.o
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$(CXX) $(CXXFLAGS) $(LDFLAGS) obj/$*/main.o -o $@
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clean:
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rm -rf $(BINDIR) obj
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$(MAKE) -C lib/bearssl clean
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$(MAKE) -C lib/libc clean
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$(MAKE) -C lib/libjpeg clean
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$(MAKE) -C lib/tls clean
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$(MAKE) -C src/fetch clean
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$(MAKE) -C src/doom clean
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$(MAKE) -C src/desktop clean
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$(MAKE) -C src/wikipedia clean
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$(MAKE) -C src/weather clean
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$(MAKE) -C src/imageviewer clean
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$(MAKE) -C src/fontpreview clean
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$(MAKE) -C src/spreadsheet clean
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$(MAKE) -C src/pdfviewer clean
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$(MAKE) -C src/disks clean
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$(MAKE) -C src/devexplorer clean
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$(MAKE) -C src/installer clean
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