fix varnamcli build

govarnam/default.nix

@@ -22,6 +22,7 @@ buildGoModule rec {
   CGO_ENABLED = 1;
 
   nativeBuildInputs = [ pkg-config libgovarnam ];
+  buildInputs = [ pkg-config libgovarnam ];
 
   ldflags = [
     "-w"
@@ -30,16 +31,19 @@ buildGoModule rec {
     "-X 'github.com/varnamproject/govarnam/govarnam.VersionString=${version}'"
   ];
 
-
   subPackages = [
     "cli"
   ];
 
+  postInstall = ''
+    mv $out/bin/cli $out/bin/varnamcli
+  '';
+
   meta = {
     description = "Easily type Indic languages on computer and mobile. GoVarnam is a cross-platform transliteration library. Manglish -> Malayalam, Thanglish -> Tamil, Hinglish -> Hindi plus another 10 languages. GoVarnam is a near-Go port of libvarnam";
     homepage = "https://github.com/varnamproject/govarnam";
     license = lib.licenses.agpl3Only;
     maintainers = with lib.maintainers; [ adtya ];
-
+    mainProgram = "varnamcli";
   };
 }

govarnam/libgovarnam.nix

@@ -22,7 +22,10 @@ buildGoModule rec {
   buildPhase = ''
     runHook preInstall
 
-    go build -tags "fts5" -buildmode=c-shared -ldflags "-s -w -X 'github.com/varnamproject/govarnam/govarnam.BuildString=${version} (\#0000000 1970-01-01T00:00:00+0000)' -X 'github.com/varnamproject/govarnam/govarnam.VersionString=${version}' -extldflags "-Wl,-soname,${pname}.so.1,--version-script,${src}/govarnam.syms"" -o ${pname}.so .
+    go build -tags "fts5" -buildmode=c-shared -ldflags \
+    "-s -w -X 'github.com/varnamproject/govarnam/govarnam.BuildString=${version} (\#0000000 1970-01-01T00:00:00+0000)' \
+    -X 'github.com/varnamproject/govarnam/govarnam.VersionString=${version}' \
+    -extldflags "-Wl,-soname,${pname}.so.1,--version-script,${src}/govarnam.syms"" -o ${pname}.so .
 
     runHook postInstall
   '';