From Stephan Huber, attached you'll find a compile fix for the new introduced rowlength-feature on IOS/OpenGL ES builds

include/osg/Image

@@ -217,7 +217,7 @@ class OSG_EXPORT Image : public BufferData
         /** Depth of image. */
         inline int r() const { return _r; }
 
-        void setRowLength(int length) { _rowLength = length; }
+        void setRowLength(int length);
         inline int getRowLength() const { return _rowLength; }
         
         void setInternalTextureFormat(GLint internalFormat);

src/osg/Image.cpp

@@ -795,6 +795,17 @@ unsigned int Image::getTotalSizeInBytesIncludingMipmaps() const
    return totalSize;
 }
 
+void Image::setRowLength(int length) 
+{ 
+    _rowLength = length;
+    #if defined(OSG_GLES1_FEATURES) || defined(OSG_GLES2_FEATURES)
+    if (length > 0) 
+    {
+        OSG_WARN << "Image::setRowLength is not supported on this platform, ignoring" << std::endl;
+    }
+    #endif
+
+}
 
 void Image::setInternalTextureFormat(GLint internalFormat)
 {

src/osg/Texture.cpp

@@ -1922,9 +1922,9 @@ void Texture::applyTexImage2D_load(State& state, GLenum target, const Image* ima
     {
         pbo = 0;
     }
-
+#if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,rowLength);
-
+#endif
     if( !mipmappingRequired || useHardwareMipMapGeneration)
     {
 
@@ -2177,9 +2177,9 @@ void Texture::applyTexImage2D_subload(State& state, GLenum target, const Image*
     {
         pbo = 0;
     }
-
+#if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,rowLength);
-
+#endif
     if( !mipmappingRequired || useHardwareMipMapGeneration)
     {
 

src/osg/Texture2DArray.cpp

@@ -455,7 +455,9 @@ void Texture2DArray::applyTexImage2DArray_subload(State& state, Image* image, GL
     }    
     
     glPixelStorei(GL_UNPACK_ALIGNMENT,image->getPacking());
+#if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,image->getRowLength());
+#endif
 
     bool useHardwareMipmapGeneration = 
         !image->isMipmap() && _useHardwareMipMapGeneration && texExtensions->isGenerateMipMapSupported();

src/osg/Texture3D.cpp

@@ -380,7 +380,9 @@ void Texture3D::applyTexImage3D(GLenum target, Image* image, State& state, GLsiz
         image->ensureValidSizeForTexturing(extensions->maxTexture3DSize());
 
     glPixelStorei(GL_UNPACK_ALIGNMENT,image->getPacking());
+#if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,image->getRowLength());
+#endif
 
     bool useHardwareMipMapGeneration = !image->isMipmap() && _useHardwareMipMapGeneration && texExtensions->isGenerateMipMapSupported();
 

src/osg/TextureRectangle.cpp

@@ -312,7 +312,9 @@ void TextureRectangle::applyTexImage_load(GLenum target, Image* image, State& st
     computeInternalFormat();
 
     glPixelStorei(GL_UNPACK_ALIGNMENT, image->getPacking());
+#if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,image->getRowLength());
+#endif
 
     bool useClientStorage = extensions->isClientStorageSupported() && getClientStorageHint();
     if (useClientStorage)
@@ -412,7 +414,9 @@ void TextureRectangle::applyTexImage_subload(GLenum target, Image* image, State&
 #endif
     }
 
+#if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,rowLength);
+#endif
 
     if(isCompressedInternalFormat(_internalFormat) && extensions->isCompressedTexSubImage2DSupported())
     {

src/osgText/Glyph.cpp

@@ -474,7 +474,10 @@ void Glyph::subload() const
     }
 
     glPixelStorei(GL_UNPACK_ALIGNMENT,getPacking());
+    
+    #if !defined(OSG_GLES1_FEATURES) && !defined(OSG_GLES2_FEATURES)
     glPixelStorei(GL_UNPACK_ROW_LENGTH,getRowLength());
+    #endif
 
     glTexSubImage2D(GL_TEXTURE_2D,0,
                     _texturePosX,_texturePosY,