CC ?= cc

VEXE ?= ./v

VFLAGS ?=

CFLAGS ?=

LDFLAGS ?=

# Portable VC snapshots do not embed V3. Keep their v1 executable on the full

# compatibility compiler path even when the generated C is built on a V3 host.

VC_BOOTSTRAP_DEFINE = -DCUSTOM_DEFINE_v1_fallback

all: download_vc v

.PHONY: all check download_vc install v v1

download_vc:

@set -e; \

if [ -f vc/v.c ]; then \

if command -v git >/dev/null 2>&1; then \

git -C vc/ pull --rebase; \

else \

echo "git not found; using existing vc/v.c"; \

fi; \

else \

if command -v git >/dev/null 2>&1; then \

git clone --filter=blob:none https://github.com/vlang/vc vc/; \

else \

echo "git is required to download vc/. Please install git or provide vc/v.c."; \

exit 1; \

fi; \

fi

v:

@set -e; \

sys=`uname -s 2>/dev/null || echo unknown`; \

arch=`uname -m 2>/dev/null || echo unknown`; \

set -- $(CFLAGS); \

ccflags=; \

unsafe_o=0; \

for arg do \

case "$$arg" in \

-O|-O0|-O1) \

ccflags="$$ccflags $$arg"; \

;; \

-O*) \

ccflags="$$ccflags $$arg"; \

unsafe_o=1; \

;; \

*) \

ccflags="$$ccflags $$arg"; \

;; \

esac; \

done; \

ccflags=$${ccflags# }; \

bootstrap_ccflags=$$ccflags; \

set -- $(LDFLAGS); \

ldflags=; \

for arg do \

ldflags="$$ldflags $$arg"; \

done; \

ldflags=$${ldflags# }; \

case "$$sys" in \

Linux) \

case "$$arch" in \

arm*) \

ldflags="$$ldflags -latomic"; \

;; \

esac; \

;; \

FreeBSD|NetBSD|OpenBSD) \

ldflags="$$ldflags -lexecinfo"; \

;; \

esac; \

ccflags=$${ccflags# }; \

ldflags=$${ldflags# }; \

if [ "$$sys" = Linux ]; then \

case "$$arch" in \

arm64|aarch64) \

if [ $$unsafe_o -eq 1 ]; then \

set -- $$ccflags; \

bootstrap_ccflags=; \

for arg do \

case "$$arg" in \

-O|-O0|-O1) \

bootstrap_ccflags="$$bootstrap_ccflags $$arg"; \

;; \

-O*) \

bootstrap_ccflags="$$bootstrap_ccflags -O1"; \

;; \

*) \

bootstrap_ccflags="$$bootstrap_ccflags $$arg"; \

;; \

esac; \

done; \

bootstrap_ccflags=$${bootstrap_ccflags# }; \

fi; \

;; \

esac; \

fi; \

bootstrap_gcflags="-gc none"; \

case " $(VFLAGS) " in \

*" -gc "*|*" -gc="*) bootstrap_gcflags="";; \

esac; \

bootstrap_ccompiler=; \

case " $(VFLAGS) " in \

*" -cc "*|*" -cc="*) ;; \

*) \

case "$$sys" in \

Linux|FreeBSD|NetBSD|OpenBSD|DragonFly) \

case "$$arch" in \

arm64|aarch64) bootstrap_ccompiler="$(CC)";; \

esac; \

;; \

esac; \

;; \

esac; \

$(CC) $$bootstrap_ccflags $(VC_BOOTSTRAP_DEFINE) -std=gnu11 -w -o v1 vc/v.c -lm -lpthread $$ldflags || cmd/tools/cc_compilation_failed_non_windows.sh; \

set -- ./v1 -no-parallel -o v2 $$bootstrap_gcflags $(VFLAGS); \

if [ -n "$$bootstrap_ccompiler" ]; then \

set -- "$$@" -cc "$$bootstrap_ccompiler"; \

fi; \

if [ -n "$$bootstrap_ccflags" ]; then \

set -- "$$@" -cflags "$$bootstrap_ccflags"; \

fi; \

if [ -n "$$ldflags" ]; then \

set -- "$$@" -ldflags "$$ldflags"; \

fi; \

set -- "$$@" cmd/v; \

"$$@"; \

set -- ./v2 -o v $$bootstrap_gcflags $(VFLAGS); \

if [ -n "$$bootstrap_ccompiler" ]; then \

set -- "$$@" -cc "$$bootstrap_ccompiler"; \

fi; \

if [ -n "$$ccflags" ]; then \

set -- "$$@" -cflags "$$ccflags"; \

fi; \

if [ -n "$$ldflags" ]; then \

set -- "$$@" -ldflags "$$ldflags"; \

fi; \

set -- "$$@" cmd/v; \

"$$@"; \

rm -rf v1 v2; \

./v -new-compiler run ./cmd/tools/detect_tcc.v; \

echo "V has been successfully built"; \

./v version; \

./v -new-compiler run .github/problem-matchers/register_all.vsh

v1:

@set -e; \

sys=`uname -s 2>/dev/null || echo unknown`; \

arch=`uname -m 2>/dev/null || echo unknown`; \

set -- $(CFLAGS); \

bootstrap_ccflags=; \

unsafe_o=0; \

for arg do \

case "$$arg" in \

-O|-O0|-O1) bootstrap_ccflags="$$bootstrap_ccflags $$arg";; \

-O*) bootstrap_ccflags="$$bootstrap_ccflags $$arg"; unsafe_o=1;; \

*) bootstrap_ccflags="$$bootstrap_ccflags $$arg";; \

esac; \

done; \

bootstrap_ccflags=$${bootstrap_ccflags# }; \

set -- $(LDFLAGS); \

ldflags=; \

for arg do ldflags="$$ldflags $$arg"; done; \

ldflags=$${ldflags# }; \

case "$$sys" in \

Linux) case "$$arch" in arm*) ldflags="$$ldflags -latomic";; esac;; \

FreeBSD|NetBSD|OpenBSD) ldflags="$$ldflags -lexecinfo";; \

esac; \

ldflags=$${ldflags# }; \

if [ "$$sys" = Linux ]; then \

case "$$arch" in \

arm64|aarch64) \

if [ $$unsafe_o -eq 1 ]; then \

set -- $$bootstrap_ccflags; \

bootstrap_ccflags=; \

for arg do \

case "$$arg" in \

-O|-O0|-O1) bootstrap_ccflags="$$bootstrap_ccflags $$arg";; \

-O*) bootstrap_ccflags="$$bootstrap_ccflags -O1";; \

*) bootstrap_ccflags="$$bootstrap_ccflags $$arg";; \

esac; \

done; \

bootstrap_ccflags=$${bootstrap_ccflags# }; \

fi;; \

esac; \

fi; \

CC='$(CC)' OLDV_CCOPTIONS='$(CPPFLAGS) '"$$bootstrap_ccflags" \

OLDV_LDFLAGS="$$ldflags" \

cmd/tools/install_v1_fallback.sh '$(VEXE)' './v1_fallback'; \

echo "Built V1 compatibility compiler: ./v1_fallback"

check:

./v test-all

install:

@echo 'Please use `sudo ./v symlink` instead, or manually add the current directory to your PATH.'