Remove JANET_LIBPATH

Author: bakpakin

man/janet-pm.1

@@ -128,12 +128,6 @@ Where to get the "curl" command when handling project.janet. Defaults to "curl".
 Where to get the "git" command when handling project.janet. Defaults to "git".
 .RE
 
-.B JANET_LIBPATH
-.RS
-The directory that the MSVC toolchain will use to find janet.h, janet.dll, and libjanet.lib. Most installs should not need to set this, unless
-there is a non-standard windows install or possibly multiple Janet versions installed.
-.RE
-
 .B JANET_OFFLINE
 .RS
 If set to 1, true, on, etc., will only look at packages in the local cache.

spork/cc.janet

@@ -85,7 +85,7 @@
   (setdyn *janet-prefix* result)
   result)
 
-(defn get-windows-prefix
+(defn get-msvc-prefix
   "Auto-detect install location on windows systems with a default install. This is the directory containing Library, C, docs, bin, etc."
   []
   (if-let [p (dyn *janet-prefix*)] (break p))
@@ -139,8 +139,7 @@
   "Guess a library and header path for msvc with a defualt Janet windows install."
   []
   (when-let [p (dyn *msvc-cpath*)] (break p))
-  (when-let [p (os/getenv "JANET_LIBPATH")] (break p)) # TODO - remove?
-  (def wp (get-windows-prefix))
+  (def wp (get-msvc-prefix))
   (path/join wp "C"))
 
 (defn msvc-janet-import-lib

spork/declare-cc.janet

@@ -769,7 +769,7 @@ int main(int argc, const char **argv) {
         (def other-cflags @[])
         (if (= toolchain :msvc)
           (do
-            (def libpath (os/getenv "JANET_LIBPATH" ""))
+            (def libpath (path/join (cc/get-msvc-prefix) "C"))
             (def msvc-libjanet (path/join libpath "libjanet.lib"))
             (def janeth (path/join libpath "janet.h"))
             (assert (= (os/stat janeth :mode) :file) "janet.h not found in expected location, possible misconfiguration")

spork/pm-config.janet

@@ -70,7 +70,6 @@
   (set1 env :gitpath "JANET_GIT")
   (set1 env :curlpath "JANET_CURL")
   (set1 env :tarpath "JANET_TAR")
-  (set1 env :msvc-cpath "JANET_LIBPATH")
   (set1 env :build-type "JANET_BUILD_TYPE" build-type-xform)
   (set1 env :toolchain "JANET_TOOLCHAIN" toochain-xform)
   (set1 env :build-root "JANET_BUILD_DIR")