nixpkgs/pkgs/by-name/li/lib25519/environment-variable-tools.patch

diff --git a/configure b/configure
index 04042b2..30d1ea9 100755
--- a/configure
+++ b/configure
@@ -210,6 +210,17 @@ for arch in sorted(os.listdir('compilers')):
     with open('compilers/%s' % arch) as f:
       for c in f.readlines():
         c = c.strip()
+        if env_cc := os.getenv('CC'):
+          c_as_list= c.split()
+          # check if the compiler we're testing has the name inside the last
+          # part of the CC env var
+          # i.e. gcc == x86_64-linux-unknown-gnu-gcc
+          # or gcc == gcc
+          if c_as_list[0] == env_cc.split("-")[-1]:
+            c_as_list[0] = env_cc
+          c = ' '.join(c_as_list)
+          log('patched command as %s' % c)
+
         cv = compilerversion(c)
         if cv == None:
           log('skipping %s compiler %s' % (arch,c))
diff --git a/scripts-build/checknamespace b/scripts-build/checknamespace
index ae11bed..bd9cb85 100755
--- a/scripts-build/checknamespace
+++ b/scripts-build/checknamespace
@@ -36,7 +36,7 @@ def doit(d):
   obj2U = {}
 
   try:
-    p = subprocess.Popen(['nm','-ApP']+objs,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,universal_newlines=True)
+    p = subprocess.Popen([os.getenv('NM', 'nm'),'-ApP']+objs,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,universal_newlines=True)
     out,err = p.communicate()
   except Exception as e:
     warn('nm failure: %s' % e)
diff --git a/scripts-build/staticlib b/scripts-build/staticlib
index 7683233..0445bc3 100755
--- a/scripts-build/staticlib
+++ b/scripts-build/staticlib
@@ -3,6 +3,6 @@
 lib="$1"
 
 rm -f package/lib/"$lib".a
-ar cr package/lib/"$lib".a ofiles/*.o
-ranlib package/lib/"$lib".a || :
+${AR:-ar} cr package/lib/"$lib".a ofiles/*.o
+${RANLIB:-ranlib} package/lib/"$lib".a || :
 chmod 644 package/lib/"$lib".a