system/nix: Some extra hardcoded assurance.

I realized late that it's started to spam root partition, again. I'm
not really happy with this, not at all; first patch updated.

Signed-off-by: Pouria Rezaei <[email protected]>

Author: RSKYS

system/nix/fix_nix_options.patch

@@ -1,17 +1,30 @@
 diff --git a/doc/manual/local.mk b/doc/manual/local.mk
-index abdfd6a..dea46f3 100644
+index abdfd6a..b4aba08 100644
 --- a/doc/manual/local.mk
 +++ b/doc/manual/local.mk
-@@ -32,7 +32,7 @@ dummy-env = env -i \
- 	NIX_STATE_DIR=/dummy \
+@@ -25,14 +25,16 @@ clean-files += $(d)/*.1 $(d)/*.5 $(d)/*.8
+ 
+ # Provide a dummy environment for nix, so that it will not access files outside the macOS sandbox.
+ # Set cores to 0 because otherwise nix show-config resolves the cores based on the current machine
++tmp_DIR := $(realpath $(bindir))
++
+ dummy-env = env -i \
+-	HOME=/dummy \
+-	NIX_CONF_DIR=/dummy \
+-	NIX_SSL_CERT_FILE=/dummy/no-ca-bundle.crt \
+-	NIX_STATE_DIR=/dummy \
++	HOME=$(tmp_DIR)/dummy \
++	NIX_CONF_DIR=$(tmp_DIR)/dummy \
++	NIX_SSL_CERT_FILE=$(tmp_DIR)/dummy/no-ca-bundle.crt \
++	NIX_STATE_DIR=$(tmp_DIR)/dummy \
  	NIX_CONFIG='cores = 0'
 
 -nix-eval = $(dummy-env) $(bindir)/nix eval --experimental-features nix-command -I nix/corepkgs=corepkgs --store dummy:// --impure --raw
 +nix-eval = $(dummy-env) $(nix_DIR)/nix eval --experimental-features nix-command -I nix/corepkgs=corepkgs --store dummy:// --impure --raw
 
  # re-implement mdBook's include directive to make it usable for terminal output and for proper @docroot@ substitution
  define process-includes
-@@ -96,52 +96,52 @@ $(d)/src/SUMMARY.md: $(d)/src/SUMMARY.md.in $(d)/src/command-ref/new-cli $(d)/sr
+@@ -96,52 +98,52 @@ $(d)/src/SUMMARY.md: $(d)/src/SUMMARY.md.in $(d)/src/command-ref/new-cli $(d)/sr
  	@cp $< $@
  	@$(call process-includes,$@,$@)
 
@@ -78,11 +91,65 @@ index abdfd6a..dea46f3 100644
  	@mv [email protected] $@
 
  # Generate the HTML manual.
+diff --git a/mk/lib.mk b/mk/lib.mk
+index e86a7f1..5a81a0c 100644
+--- a/mk/lib.mk
++++ b/mk/lib.mk
+@@ -118,7 +118,7 @@ $(foreach mf, $(makefiles), $(eval $(call include-sub-makefile, $(mf))))
+ # Instantiate stuff.
+ $(foreach lib, $(libraries), $(eval $(call build-library,$(lib))))
+ $(foreach prog, $(programs), $(eval $(call build-program,$(prog))))
+-$(foreach script, $(bin-scripts), $(eval $(call install-program-in,$(script),$(bindir))))
++$(foreach script, $(bin-scripts), $(eval $(call install-program-in,$(script),$(nix_DIR))))
+ $(foreach script, $(bin-scripts), $(eval programs-list += $(script)))
+ $(foreach script, $(noinst-scripts), $(eval programs-list += $(script)))
+ $(foreach template, $(template-files), $(eval $(call instantiate-template,$(template))))
+diff --git a/mk/libraries.mk b/mk/libraries.mk
+index 1bc73d7..6549029 100644
+--- a/mk/libraries.mk
++++ b/mk/libraries.mk
+@@ -60,7 +60,7 @@ define build-library
+   _libs := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_PATH))
+ 
+   ifdef HOST_CYGWIN
+-    $(1)_INSTALL_DIR ?= $$(bindir)
++    $(1)_INSTALL_DIR ?= $$(nix_DIR)
+   else
+     $(1)_INSTALL_DIR ?= $$(libdir)
+   endif
+diff --git a/mk/programs.mk b/mk/programs.mk
+index 1ee1d3f..05080fe 100644
+--- a/mk/programs.mk
++++ b/mk/programs.mk
+@@ -38,7 +38,7 @@ define build-program
+   $$($(1)_PATH): $$($(1)_OBJS) $$(_libs) | $$(_d)/
+ 	+$$(trace-ld) $(CXX) -o $$@ $$(LDFLAGS) $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE))
+ 
+-  $(1)_INSTALL_DIR ?= $$(bindir)
++  $(1)_INSTALL_DIR ?= $$(nix_DIR)
+ 
+   ifdef $(1)_INSTALL_DIR
+ 
+diff --git a/src/nix/local.mk b/src/nix/local.mk
+index 20ea29d..a082bd1 100644
+--- a/src/nix/local.mk
++++ b/src/nix/local.mk
+@@ -22,8 +22,8 @@ nix_LDFLAGS = -pthread $(SODIUM_LIBS) $(EDITLINE_LIBS) $(BOOST_LDFLAGS) $(LOWDOW
+ 
+ $(foreach name, \
+   nix-build nix-channel nix-collect-garbage nix-copy-closure nix-daemon nix-env nix-hash nix-instantiate nix-prefetch-url nix-shell nix-store, \
+-  $(eval $(call install-symlink, nix, $(bindir)/$(name))))
+-$(eval $(call install-symlink, $(bindir)/nix, $(libexecdir)/nix/build-remote))
++  $(eval $(call install-symlink, nix, $(nix_DIR)/$(name))))
++$(eval $(call install-symlink, $(nix_DIR)/nix, $(libexecdir)/nix/build-remote))
+ 
+ src/nix-env/user-env.cc: src/nix-env/buildenv.nix.gen.hh
+ 
 diff --git a/doc/manual/local.mk b/doc/manual/local.mk
-index dea46f3..422d531 100644
+index b4aba08..daed407 100644
 --- a/doc/manual/local.mk
 +++ b/doc/manual/local.mk
-@@ -174,22 +174,22 @@ doc/manual/generated/man1/nix3-manpages: $(d)/src/command-ref/new-cli
+@@ -176,22 +176,22 @@ doc/manual/generated/man1/nix3-manpages: $(d)/src/command-ref/new-cli
  	@touch $@
 
  $(docdir)/manual/index.html: $(MANUAL_SRCS) $(d)/book.toml $(d)/anchors.jq $(d)/custom.css $(d)/src/SUMMARY.md $(d)/src/command-ref/new-cli $(d)/src/contributing/experimental-feature-descriptions.md $(d)/src/command-ref/conf-file.md $(d)/src/language/builtins.md $(d)/src/language/builtin-constants.md

system/nix/nix.SlackBuild

@@ -102,7 +102,7 @@ find -L . \
 #   root partition is bad, m'kay? (Updated).
 # - The above patch was added thanks to Pragmatic Cypher, along with
 #   mdbook patch to make it disabled.
-# - Added global CFLAGS.
+# - Added global CFLAGS
 # - Changed to ignore offset, since function hasn't still implemented
 #   in Slackware 15's sqlite.
 # - Fixed missing -lrapidcheck flag.
@@ -118,6 +118,7 @@ CXXFLAGS="$SLKCFLAGS" \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --mandir=/usr/man \
   --docdir=/usr/doc/$PRGNAM-$VERSION \
+  --bindir=$PKG \
   --sysconfdir=/etc \
   --enable-static=rapidcheck \
   --build=$ARCH-slackware-linux \