Fix build process not working ('all' target not being executed)

Makefile

@@ -14,28 +14,36 @@ SPHINX := sphinx-build
 
 BUN := bun
 
+# this ensures `all` is run by default despite not being the first target in the Makefile
+.DEFAULT_GOAL := all
+
 # check for dependencies
 
+.PHONY: validate_cmake validate_cargo validate_sphinx validate_bun
 validate_cmake:
 	$(if \
 		$(shell which $(CMAKE)),\
 		$(info CMake located at $(shell command -v $(CMAKE))),\
 		$(error CMake not found in PATH, but is required to build texedit))
+	@:
 validate_cargo:
 	$(if \
 		$(shell which $(CARGO)),\
 		$(info Cargo located at $(shell command -v $(CARGO))),\
 		$(error Cargo not found in PATH, but is required to build tecomp))
+	@:
 validate_sphinx:
 	$(if \
 		$(shell which $(SPHINX)),\
 		$(info Sphinx located at $(shell command -v $(SPHINX))),\
 		$(error Sphinx (sphinx-build) not found in PATH, but is required to build HTML doc))
+	@:
 validate_bun:
 	$(if \
 		$(shell which $(BUN)),\
 		$(info Bun located at $(shell command -v $(BUN))),\
 		$(error Bun not found in PATH, but is required to build tepdfserver))
+	@:
 
 # run with DEBUG=1 to use debug configuration
 
@@ -49,7 +57,8 @@ ifneq "$(DEBUG)" "1"
 CARGOFLAGS += --release
 endif
 
-.PHONY: tecomp texedit tepdfserver docs clean predist validate_sphinx validate_bun
+.PHONY: tecomp texedit tepdfserver
+.PHONY: docs clean predist
 
 
 #
@@ -88,7 +97,7 @@ $(BUILD_DIR)/texpdfc.sh: $(SRC_DIR)/tecomp/texpdfc.sh | $(BUILD_DIR)
 
 COMPILER_TOML := $(SRC_DIR)/tecomp/Cargo.toml
 
-tecomp: validate_cargo $(COMPILER_TOML) $(TEXLIVE_DST) $(BUILD_DIR)/texpdfc.sh
+tecomp: $(COMPILER_TOML) $(TEXLIVE_DST) $(BUILD_DIR)/texpdfc.sh | validate_cargo
 	$(CARGO) $(CARGOCHAN) build $(CARGOFLAGS) --manifest-path=$(COMPILER_TOML) --target-dir=$(BUILD_DIR)/_$@ --out-dir=$(BUILD_DIR)
 
 
@@ -98,7 +107,7 @@ tecomp: validate_cargo $(COMPILER_TOML) $(TEXLIVE_DST) $(BUILD_DIR)/texpdfc.sh
 
 FRONTEND_CMAKELISTS := $(SRC_DIR)/texedit/CMakeLists.txt
 
-texedit: validate_cmake $(FRONTEND_CMAKELISTS)
+texedit: $(FRONTEND_CMAKELISTS) | validate_cmake
 	$(CMAKE) $(SRC_DIR)/texedit -B$(BUILD_DIR)/_frontend $(CMAKEFLAGS)
 	$(CMAKE) --build $(BUILD_DIR)/_frontend
 	mv $(BUILD_DIR)/_frontend/texedit $(BUILD_DIR)
@@ -111,7 +120,7 @@ texedit: validate_cmake $(FRONTEND_CMAKELISTS)
 $(SRC_DIR)/tepdfserver/node_modules:
 	$(BUN) install --cwd $(SRC_DIR)/tepdfserver
 
-tepdfserver: validate_bun | $(BUILD_DIR) $(SRC_DIR)/tepdfserver/node_modules
+tepdfserver: | validate_bun $(BUILD_DIR) $(SRC_DIR)/tepdfserver/node_modules
 	$(BUN) build --compile $(SRC_DIR)/tepdfserver/server/start.ts --loader .mjs:file --outfile=tepdfserver
 	mv $(SRC_DIR)/tepdfserver/server/tepdfserver $(BUILD_DIR)
 
@@ -123,7 +132,7 @@ tepdfserver: validate_bun | $(BUILD_DIR) $(SRC_DIR)/tepdfserver/node_modules
 DOCS_CONF_PY := $(SRC_DIR)/docs/conf.py
 DOCS_CONFIG_SH := $(SRC_DIR)/docs/configure.sh
 
-docs: validate_sphinx $(DOCS_CONFIG_SH) $(DOCS_CONF_PY)
+docs: $(DOCS_CONFIG_SH) $(DOCS_CONF_PY) | validate_sphinx
 	$(DOCS_CONFIG_SH) "$(SPHINX)" "$(SRC_DIR)/docs" "$(BUILD_DIR)/docs" "$(SRC_DIR)/util"