reverted some changes from #158

Signed-off-by: Alexander Piskun <[email protected]>

libheif/linux_build_libs.py

@@ -104,6 +104,17 @@ def is_musllinux() -> bool:
     return False
 
 
+def is_library_installed(name: str) -> bool:
+    if name.find("main") != -1 and name.find("reference") != -1:
+        raise Exception("`name` param can not contain `main` and `reference` substrings.")
+    _r = run(f"gcc -l{name}".split(), stdout=PIPE, stderr=STDOUT, check=False)
+    if _r.stdout:
+        _ = _r.stdout.decode("utf-8")
+        if _.find("main") != -1 and _.find("reference") != -1:
+            return True
+    return False
+
+
 def run_print_if_error(args) -> None:
     _ = run(args, stdout=PIPE, stderr=STDOUT, check=False)
     if _.returncode != 0:
@@ -202,15 +213,25 @@ def build_libs() -> None:
     _original_dir = getcwd()
     try:
         if not tool_check_version("cmake", "3.13.4"):
-            raise ValueError("Can not find `cmake` with version >=3.13.4")
-        if not PH_LIGHT_VERSION:
-            if not check_install_nasm("2.15.05"):
-                raise ValueError("Can not find/install `nasm` with version >=2.15.05")
-            build_lib_linux(LIBX265_URL, "x265")
-            if not check_install_nasm("2.15.05"):
-                raise ValueError("Can not find/install `nasm` with version >=2.15.05")
-            build_lib_linux(LIBAOM_URL, "aom")
-        build_lib_linux(LIBDE265_URL, "libde265")
+            raise ValueError("Can not find `cmake` with version >=3.16.3")
+        if not is_library_installed("x265"):
+            if not PH_LIGHT_VERSION:
+                if not check_install_nasm("2.15.05"):
+                    raise ValueError("Can not find/install `nasm` with version >=2.15.05")
+                build_lib_linux(LIBX265_URL, "x265")
+        else:
+            print("x265 already installed.")
+        if not is_library_installed("aom"):
+            if not PH_LIGHT_VERSION:
+                if not check_install_nasm("2.15.05"):
+                    raise ValueError("Can not find/install `nasm` with version >=2.15.05")
+                build_lib_linux(LIBAOM_URL, "aom")
+        else:
+            print("aom already installed.")
+        if not is_library_installed("libde265") and not is_library_installed("de265"):
+            build_lib_linux(LIBDE265_URL, "libde265")
+        else:
+            print("libde265 already installed.")
         build_lib_linux(LIBHEIF_URL, "libheif")
     finally:
         chdir(_original_dir)