Fix header selection issues, update Gradle

.github/workflows/gradle.yml

@@ -37,7 +37,7 @@ jobs:
           key: ${{ runner.os }}-konan-1.4.20-eap-37
           restore-keys: ${{ runner.os }}-konan-1.4.20-eap-37
       - name: Build with Gradle
-        run: ./gradlew -Dorg.gradle.daemon=false --build-cache :kmath-gsl:cinteropLibgslNative build
+        run: ./gradlew -Dorg.gradle.daemon=false --build-cache build
   build-osx:
     runs-on: macos-latest
 
@@ -67,7 +67,7 @@ jobs:
           key: ${{ runner.os }}-konan-1.4.20-eap-37
           restore-keys: ${{ runner.os }}-konan-1.4.20-eap-37
       - name: Build with Gradle
-        run: sudo ./gradlew -Dorg.gradle.daemon=false --build-cache :kmath-gsl:cinteropLibgslNative build
+        run: sudo ./gradlew -Dorg.gradle.daemon=false --build-cache build
 
   build-windows:
     runs-on: windows-latest

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

kmath-gsl/build.gradle.kts

@@ -11,8 +11,8 @@ kotlin {
     explicitApiWarning()
 
     val nativeTarget = when (System.getProperty("os.name")) {
-        "Mac OS X" -> macosX64("native")
-        "Linux" -> linuxX64("native")
+        "Mac OS X" -> macosX64()
+        "Linux" -> linuxX64()
 
         else -> {
             logger.warn("Current OS cannot build any of kmath-gsl targets.")
@@ -22,16 +22,14 @@ kotlin {
 
     val main by nativeTarget.compilations.getting {
         cinterops {
-            val libgsl by creating {
-                includeDirs {
-                    headerFilterOnly("/usr/include/", "/usr/local/")
-                }
-            }
+            val libgsl by creating
         }
     }
 
+    val test by nativeTarget.compilations.getting
+
     sourceSets {
-        val nativeMain by getting {
+        val nativeMain by creating {
             val codegen by tasks.creating {
                 matricesCodegen(kotlin.srcDirs.first().absolutePath + "/kscience/kmath/gsl/_Matrices.kt")
                 vectorsCodegen(kotlin.srcDirs.first().absolutePath + "/kscience/kmath/gsl/_Vectors.kt")
@@ -43,5 +41,12 @@ kotlin {
                 api(project(":kmath-core"))
             }
         }
+
+        val nativeTest by creating {
+            dependsOn(nativeMain)
+        }
+
+        main.defaultSourceSet.dependsOn(nativeMain)
+        test.defaultSourceSet.dependsOn(nativeTest)
     }
 }

kmath-gsl/src/nativeInterop/cinterop/libgsl.def

@@ -1,7 +1,6 @@
 package=org.gnu.gsl
-headers=gsl/gsl_blas.h
 headerFilter=gsl/**
-compilerOpts=-I/usr/include/gsl
-linkerOpts=-lgsl
-linkerOpts.linux=-L/usr/lib64 -L/usr/lib/x86_64-linux-gnu
-linkerOpts.osx=-L/opt/local/lib -L/usr/local/lib
+compilerOpts.linux=-I/usr/include/
+compilerOpts.osx=-I/usr/local/
+linkerOpts.linux=-L/usr/lib64 -L/usr/lib/x86_64-linux-gnu -lgsl
+linkerOpts.osx=-L/opt/local/lib -L/usr/local/lib -lgsl